UC Berkeley   |   UC Berkeley Department of Astronomy   |   Lick Observatory   |   Keck Observatory   |   Alex Filippenko   |   Geoff Marcy

Experience

Throughout the past 9 years, I have contributed to 13 research projects with 7 advisers at 6 locations across the United States. Here you will find information about these projects including who I worked with, where and when the project was undertaken, a brief description of the project, and links to any publications and/or presentations. Scroll down the page to view the research projects in reverse chronological order or use the links below to jump to a specific project.



Photometric and Spectroscopic Observations of Supernovae

Supernova IllustrationUC Berkeley LogoAdviser: Dr. Alex Filippenko
Position: Assistant Specialist
Location: UC Berkeley Department of Astronomy, Berkeley, CA
Time Period: February 2011 - Present

Description of Project:

I learned how to operate four telescope and instrument combinations: Keck 10-m with LRIS and DEIMOS, Lick 3-m with Kast, and Nickel 1-m with CCD. I acquired imaging data (spectroscopic and photometric) of supernovae (SNe) and other transient objects of interest during 103 nights of observing. I learned how to process imaging data (spectroscopic and photometric) and have processed imaging data for over 200 nights worth of data. I trained 21 UC Berkeley (UCB) undergraduates how to obtain data with the Nickel 1-m telescope and supervised a total of 26 UCB undergraduate Nickel observers. I have co-trained three UCB postdocs and one UCB graduate student how to obtain data with the Lick 3-m telescope and Kast Double Spectrograph. I was asked to introduce 15 UC astronomy graduate students to photometric observing with the Nickel 1-m telescope. I manage nearly all aspects of data acquisition and processing for Dr. Filippenko's research group which includes managing observers' schedules, preparing and submitting telescope time usage proposals, and other administrative duties. I have written five technical documents using LaTeX.


13 Coauthored Publications:

"The Progenitor of Supernova 2011dh has Vanished"
S. D. Van Dyk, W. Zheng, K. I. Clubb, A. V. Filippenko, S. B. Cenko, N. Smith, O. D. Fox, P. L. Kelly, I. Shivvers, and M. Ganeshalingam.
2013, ApJL, 772, L32
[ADS]

"Late-time Circumstellar Interaction in a Spitzer Selected Sample of Type IIn Supernovae"
O. D. Fox, A. V. Filippenko, M. F. Skrutskie, J. M. Silverman, M. Ganeshalingam, S. B. Cenko and K. I. Clubb.
2013, AJ, 146, 2
[ADS]

"Type Ia Supernovae Strongly Interacting with Their Circumstellar Medium"
J. M. Silverman, P. E. Nugent, A. Gal-Yam, M. Sullivan, D. A. Howell, A. V. Filippenko, I. Arcavi, S. Ben-Ami, J. S. Bloom, S. B. Cenko, Y. Cao, R. Chornock, K. I. Clubb, A. L. Coil, R. J. Foley, M. L. Graham, C. V. Griffith, A. Horesh, M. M. Kasliwal, S. R. Kulkarni, D. C. Leonard, W. Li, T. Matheson, A. A. Miller, M. Modjaz, E. O. Ofek, Y.-C. Pan, D. A. Perley, D. Poznanski, R. M. Quimby, T. N. Steele, A. Sternberg, D. Xu, and O. Yaron.
2013, ApJS, 207, 3
[ADS]

"The Lick AGN Monitoring Project 2011: Fe II Reverberation from the Outer Broad-line Region"
A. J. Barth, A. Pancoast, V. N. Bennert, B. J. Brewer, G. Canalizo, A. V. Filippenko, E. L. Gates, J. E. Greene, W. Li, M.A. Malkan, D. J. Sand, D. Stern, T. Treu, J.H. Woo, R. J. Assef, H.-J. Bae, T. Buehler, S. B. Cenko, K. I. Clubb, M. C. Cooper, A. M. Diamond-Stanic, S. F. Hoenig, M. D. Joner, C. D.Laney, M. S. Lazarova, A. M. Nierenberg, J. M. Silverman, E. J. Tollerud, and J. L. Walsh.
2013, ApJ, 769, 128
[ADS]

"Spectroscopic Observations of SN 2012fr: A Luminous, Normal Type Ia Supernova with Early High-velocity Features and a Late Velocity Plateau"
M. J. Childress, R. A. Scalzo, S. A. Sim, B. E. Tucker, F. Yuan, B. P. Schmidt, S. B. Cenko, J. M. Silverman, C. Contreras, E. Y. Hsiao, M. Phillips, N. Morrell, S. W. Jha, C. McCully, A. V. Filippenko, J. P. Anderson, S. Benetti, F. Bufano, T. de Jaeger, F. Forster, A. Gal-Yam, L. Le Guillou, K. Maguire, J. Maund, P. A. Mazzali, G. Pignata, S. Smartt, J. Spyromilio, M. Sullivan, F. Taddia, S. Valenti, D. D. R. Bayliss, M. Bessell, G. A. Blanc, D. J. Carson, K. I. Clubb, C. de Burgh-Day, T. D. Desjardins, J. J. Fang, O. D. Fox, E. L. Gates, I-T. Ho, S. Keller, P. L. Kelly, C. Lidman, N. S. Loaring, J. R. Mould, M. Owers, S. Ozbilgen, L. Pei, T. Pickering, M. B. Pracy, J. A. Rich, B. E. Schaefer, N. Scott, M. Stritzinger, F. P. A. Vogt, G. Zhou.
2013, ApJ, 770, 29
[ADS]

"SN 2011ht: Confirming a Class of Interacting Supernovae with Plateau Light Curves (Type IIn-P)"
J. C. Mauerhan, N. Smith, J. M. Silverman, A. V. Filippenko, A. N. Morgan, S. B. Cenko, M. Ganeshalingam, K. I. Clubb, and T. Matheson.
2013, MNRAS, 431, 2599-2611
[ADS]

"The Unprecedented 2012 Outburst of SN 2009ip: A Luminous Blue Variable Becomes a True Supernova"
J. C. Mauerhan, N. Smith, A. Filippenko, K. Blanchard, P. Blanchard, C. F. E. Casper, S. B. Cenko, K. I. Clubb, D. Cohen, K. Fuller, G. Li, and J. M. Silverman.
2012, MNRAS, 430, 1801-1810
[ADS]

"Discovery and Early Multi-wavelength Measurements of the Energetic Type Ic Supernova PTF12gzk: A Massive-star Explosion in a Dwarf Host Galaxy"
S. Ben-Ami, A. Gal-Yam, A. V. Filippenko, P. A. Mazzali, M. Modjaz, O. Yaron, I. Arcavi, S. B. Cenko, A. Horesh, D. A. Howell, M. L. Graham, J. C. Horst, M. Im, Y. Jeon, S. R. Kulkarni, D. C. Leonard, D. Perley, E. Pian, D. J. Sand, M. Sullivan, J. C. Becker, D. Bersier, J. S. Bloom, M. Bottom, P. J. Brown, K. I. Clubb, B. Dilday, R. C. Dixon, A. L. Fortinsky, D. B. Fox, L. A. Gonzalez, A. Harutyunyan, M. M. Kasliwal, W. Li, M. A. Malkan, I. Manulis, T. Matheson, N. A. Moskovitz, P. S. Muirhead, P. E. Nugent, E. O. Ofek, R. M. Quimby, J. W. Richards, N. R. Ross, K. J. Searcy, J. M. Silverman, N. Smith, A. Vanderburg, and E. S. Walker.
2012, ApJL, 760, L33
[ADS]

"SN 2011hw: Helium-Rich Circumstellar Gas and the Luminous Blue Variable to Wolf-Rayet Transition in Supernova Progenitors"
N. Smith, J. C. Mauerhan, J. M. Silverman, M. Ganeshalingam, A. V. Filippenko, S. B. Cenko, K. I. Clubb, and M. Kandrashoff.
2012, MNRAS, 426, 1905-1915
[ADS]

"The Very Young Type Ia Supernova 2012cg: Discovery and Early-Time Follow-Up Observations"
J. M. Silverman, M. Ganeshalingam, S. B. Cenko, A. V. Filippenko, W. Li, A. J. Barth, D. J. Carson, M. Childress, K. I. Clubb, A. Cucchiara, M. L. Graham, G. H. Marion, M. L. Nguyen, L. Pei, B. E. Tucker, J. Vinko, J. C. Wheeler, and G. Worseck.
2012, ApJL, 756, L7
[ADS]

"The Lick AGN Monitoring Project 2011: Dynamical Modeling of the Broad-line Region in Mrk 50"
A. Pancoast, B. J. Brewer, T. Treu, A. J. Barth, V. N. Bennert, G. Canalizo, A. V. Filippenko, E. L. Gates, J. E. Greene, W. Li, M. A. Malkan, D. J. Sand, D. Stern, J.-H. Woo, R. J. Assef, H.-J. Bae, T. Buehler, S. B. Cenko, K. I. Clubb, M. C. Cooper, A. M. Diamond-Stanic, K. D. Hiner, S. F. Honig, M. D. Joner, M. T. Kandrashoff, C. D. Laney, M. S. Lazarova, A. M. Nierenberg, D. Park, J. M. Silverman, D. Son, A. Sonnenfeld, S. J. Thorman, E. J. Tollerud, J. L. Walsh, and R. Walters.
2012, ApJ, 754, 49
[ADS]

"SN 2011dh: Discovery of a Type IIb Supernova from a Compact Progenitor in the Nearby Galaxy M51"
I. Arcavi, A. Gal-Yam, O. Yaron, A. Sternberg, I. Rabinak, E. Waxman, M. M. Kasliwal, R. M. Quimby, E. O. Ofek, A. Horesh, S. R. Kulkarni, A. V. Filippenko, J. M. Silverman, S. B. Cenko, W. Li, J. S. Bloom, M. Sullivan, P. E. Nugent, D. Poznanski, E. Gorbikov, B. J. Fulton, D. A. Howell, D. Bersier, A. Riou, S. LamoÃe-Bailey, T. Griga, J. G. Cohen, S. Hachinger, D. Polishook, D. Xu, S. Ben-Ami, I. Manulis, E. S. Walker, K. Maguire, Y.-C. Pan, T. Matheson, P. A. Mazzali, E. Pian, D. B. Fox, N. Gehrels, N. Law, P. James, J. M. Marchant, R. J. Smith, C. J. MoÃram, R. M. Barnsley, M. T. Kandrashoff, and K. I. Clubb.
2011, ApJL, 742, L18
[ADS]

"The Lick AGN Monitoring Project 2011: Reverberation Mapping of Markarian 50"
A. J. Barth, A.Pancoast, S. J. Thorman, V. N. Bennert, D. J. Sand, W. Li, G. Canalizo, A. V. Filippenko, E. L. Gates, J. E. Greene, M. A. Malkan, D. Stern, T. Treu, J.-H. Woo, R. J. Assef, H.-J. Bae, B. J. Brewer, T. Buehler, S. B. Cenko, K. I. Clubb, M. C. Cooper, A. M. Diamond-Stanic, K. D. Hiner, S. F. Honig, M. D. Joner, M. T. Kandrashoff, C. D. Laney, M. S. Lazarova, A. M. Nierenberg, D. Park, J. M. Silverman, D. Son, A. Sonnenfeld, E. J. Tollerud, J. L. Walsh, R. Walters, R. L. da Silva, M. Fumagalli, M. D. Gregg, C. E. Harris, E. Y. Hsiao, J. Lee, L. Lopez, J. Rex, N. Suzuki, J. R. Trump, D. Tytler, G. Worseck, and H. M. Yesuf
2011, ApJL, 743, L4
[ADS]


Two Contributed Conference Posters:

"The Unprecedented Third Outburst of SN 2009ip: A Luminous Blue Variable Becomes a Supernova"
J. Mauerhan, N. Smith, A. V. Filippenko, J. Silverman, B. Cenko, and K. Clubb.
2013, Bulletin of the American Astronomical Society, 221, #233.03
[ADS]

"Reverberation Mapping of the Kepler target KA1858+48"
L. Pei, A. J. Barth, M. A. Malkan, S. B. Cenko, K. I. Clubb, A. V. Filippenko, E. L. Gates, J. Horst, M. D. Joner, D. C. Leonard, and D. J. Sand.
2013, Bulletin of the American Astronomical Society, 221, #339.13
[ADS]


Five Technical Documents:

Nickel Observing Checklist (view document in .pdf format - 0.7 MB)
Nickel Observing Guide (view document in .pdf format - 0.75 MB)
Nickel Data Processing Guide (view document in .pdf format - 0.8 MB)
Kast Observing Checklist (view document in .pdf format - 1 MB)
Kast Data Processing Guide (view document in .pdf format - 4.4 MB)

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Spectroscopic Observations of Exoplanets

Hot Neptune IllustrationUC Berkeley LogoAdviser: Dr. Geoff Marcy
Position: Assistant Specialist
Location: UC Berkeley Department of Physics and Astronomy, Berkeley, CA
Time Period: February 2011 - Present

Description of Project:

I have spent 47 nights observing with the Lick 3-m telescope and Hamilton spectrometer to obtain imaging data of stars that may host extrasolar planets. I have also used IDL (Interactive Data Language) to develop a new software package that removes a non-physical quality contained in every raw spectral image, thus allowing for a more precise analysis of the processed data.


Coauthored Publication:

"Two new SB2 binaries with main sequence B-type pulsators in the Kepler field"
P. I. Pápics, A. Tkachenko, C. Aerts, M. Briquet, P. Marcos-Arenal, P. G. Beck, K. Uytterhoeven, A. Triviño Hage, J. Southworth, K. I. Clubb, S. Bloemen, P. Degroote, J. Jackiewicz, J. McKeever, H. Van Winckel, E. Niemczura, J. F. Gameiro, J. Debosscher.
2013, A&A, 553, A127
[ADS]


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Project Manager for the Lick Observatory Planet Search

Lick Observatory IllustrationSFSU LogoAdviser: Dr. Debra Fischer
Position: Research Technician
Location: SFSU Department of Physics and Astronomy, San Francisco, CA
Time Period: February 2010 - February 2011

Description of Project:

The Lick Observatory Planet Search is the longest running exoplanet survey in the world. The Hamilton Spectrograph is used with either the 3-meter Shane Telescope or the 0.6-meter Coude Auxiliary Telescope (affectionately known as "The CAT") to measure the change in a star's radial velocity over time. I spent over 40 nights acquiring imaging data in an effort to discover stars that host extrasolar planets and ran the data processing pipeline after each night. I also conducted a study of the current performance of our data processing algorithms implemented in IDL (Interactive Data Language) and made modifications to these algorithms in order to improve the performance of the code.


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M2K: A Search for Planets Orbiting Early M and Late K Dwarf Stars

Hot Neptune IllustrationSFSU LogoAdviser: Dr. Debra Fischer
Position: Graduate Research Assistant
Location: SFSU Department of Physics and Astronomy, San Francisco, CA
Time Period: September 2008 - March 2010

Description of Project:

Of the first 300 planets discovered outside our Solar System, the majority are gas giants with masses similar to or greater than the mass of Jupiter (or 318 times the mass of the Earth). This project aims to increase the number of smaller mass planets discovered. If low mass planets become routinely detectable, we may be faced with the idea that our Earth might not be so unique after all. I helped launch this project in the fall of 2008. I used IDL (Interactive Data Language) to construct a data structure containing all 585 stars with individual information such as their coordinates on the sky and how bright they are. I created algorithms implemented in IDL in order to update dynamic information over the course of the project, such as how many times each star has been observed and the measured radial velocity for each star. I also created a website using HTML to display this information for collaborators.


Two Coauthored Publications:

"M2K. II. A Triple-planet System Orbiting HIP 57274"
D. A. Fischer, E. Gaidos, A. W. Howard, M. J. Giguere, J. A. Johnson, G. W. Marcy, J. T. Wright, J. A. Valenti, N. Piskunov, K. I. Clubb, H. Isaacson, K. Apps, S. Lepine, A. Mann, J. Moriarty, J. Brewer, J. F. P. Spronck, C. Schwab, and A. Szymkowiak.
2012, ApJ, 745, 21
[ADS]

"M2K: I. A Jupiter-Mass Planet Orbiting the M3V Star HIP 79431"
K. Apps, K. I. Clubb, D. A. Fischer, E.Gaidos, A. Howard, J. A.Johnson, G.W.Marcy, H.Isaacson, M.J.Giguere, J. A. Valenti, V. Rodriguez, C. Chubak, and S. Lepine.
2010, PASP, 122, 156
[ADS]


Public Outreach:

In January 2009, I was interviewed by one of San Francisco State's news media publicists to communicate the results of my research that I presented at the 2013th meeting of the American Astronomical Society in Long Beach, CA.


Two Poster Presentations (including one at a conference):

SFSU College of Science & Engineering Student Project Showcase 2009  (view poster in .pdf format - 1 MB)

"M2K: A Search for Planets Orbiting Early M and Late K Dwarf Stars"
K. Clubb, D. Fischer, A. Howard, G. Marcy, and G. Henry.
2009, Bulletin of the American Astronomical Society, 41, #402.06
[ADS]

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The Calcium Infrared Triplet as an Indicator of Stellar Chromospheric Activity

Hot Neptune IllustrationSFSU LogoAdviser: Dr. Debra Fischer
Position: Graduate Research Assistant
Location: SFSU Department of Physics and Astronomy, San Francisco, CA
Time Period: January 2009 - January 2010

Description of Project:

I created algorithms implemented in IDL (Interactive Data Language) and used statistical techniques to analyze the Calcium II Infrared Triplet (IRT) lines for ~700 F, G, K, and M-type main sequence stars from ~13,000 archival spectra obtained with the Hamilton Echelle Spectograph at Lick Observatory as part of the California Planet Search program. The strength of each of the IRT lines was measured and their dependence on the level of chromospheric activity (obtained from the standard measurement of the emission in the cores of the Calcium II H and K lines) was explored, taking into account additional effects on the shape of the lines due to other stellar parameters such as surface gravity and rotational velocity.


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Spectroscopic Observations of Exoplanets

Hot Neptune IllustrationSFSU LogoAdviser: Dr. Debra Fischer
Position: Graduate Research Assistant
Location: SFSU Department of Physics and Astronomy, San Francisco, CA
Time Period: January 2008 - January 2010

Description of Project:

From January 2008 through May 2008, I updated the archive of data that Dr. Debra Fischer's research group had obtained at Lick Observatory. Beginning in January 2009, I was trained and certified to operate the Coude Auxilary Telescope and the Shane 3-m telescope with the Hamilton spectrometer at Lick Observatory. I also learned how to run the data processing pipeline (the intermediate step between data acquisition and data analysis). Between September 2009 and January 2010, I spent 12 nights collecting imaging data of subgiant stars with extrasolar planets for John Johnson.


Three Coauthored Publications:

"Retired A Stars and Their Companions. VI. A Pair of Interacting Exoplanet Pairs Around the Subgiants 24 Sextanis and HD 200964"
J. A. Johnson, M. Payne, A. W. Howard, K. I. Clubb, E. B. Ford, B. P. Bowler, G. W. Henry, D. A. Fischer, G. W. Marcy, J. M. Brewer, C. Schwab, S. Reffert, and T. B. Lowe.
2011, AJ, 141, 16
[ADS]

"On the Transit Potential of the Planet Orbiting Iota Draconis"
S. R. Kane, S. Reffert, G. W. Henry, D. Fischer, C. Schwab, K. I. Clubb, and C. Bergmann.
2010, ApJ, 720, 1644
[ADS]

"Retired A Stars and Their Companions. III. Comparing the Mass-Period Distributions of Planets Around A-Type Stars and Sun-Like Stars"
B. P. Bowler, J. A. Johnson, G. W. Marcy, G. W. Henry, K. M. G. Peek, D. A. Fischer, K. I. Clubb, M. C. Liu, S. Reffert, C. Schwab, and T. B. Lowe.
2010, ApJ, 709, 396
[ADS]


Two Contributed Conference Posters:

"Comparing the Mass-Period Distributions of Planets Around A-Type Stars and Sun-Like Stars"
B. P. Bowler, J. A. Johnson, G. W. Marcy, G. W. Henry, K. M. G. Peek, D. A. Fischer, K. Clubb, M. C. Liu, S. Reffert, C. Schwab, and T. Lowe.
2010, Bulletin of the American Astronomical Society, 42, #423.18
[ADS]

"The Eta-Earth Survey for Low-Mass Exoplanets"
A. Howard, G. Marcy, D. Fischer, J. Johnson, J. Wright, J. Valenti, J. Anderson, N. Piskunov, H. Isaacson, J. Brewer, K. Clubb, D. Lin, and S. Ida.
2010, Bulletin of the American Astronomical Society, 42, #348.06
[ADS]

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Adding Data to the NASA Star and Exoplanet Database (NStED)

NASA Exoplanet Archive IllustrationCaltech LogoAdviser: Dr. John Stauffer
Position: Scientific Research Assistant, Infrared Processing and Analysis Center
Location: California Institute of Technology, Pasadena, CA
Time Period: June 2009 - August 2009

Description of Project:

The NASA Star and Exoplanet Database (now known as the NASA Exoplanet Archive) is an online astronomical exoplanet and stellar catalog and data service that collates and cross-correlates astronomical data and information on exoplanets and their host stars and provides tools to work with these data. I spent the summer of 2009 learning about and helping to add information to the database. I used IDL (Interactive Data Language) to organize and clean data from multiple sources (mostly stellar parameters from published journal articles).


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A Detailed Derivation of the Radial Velocity Equation

Radial Velocity IllustrationSFSU LogoAdviser: Dr. Debra Fischer
Position: Graduate Research Assistant
Location: SFSU Department of Physics and Astronomy, San Francisco, CA
Time Period: June 2008 - August 2008

Description of Project:

Of the over 300 extrasolar planets discovered to date, the vast majority have been found using the Radial Velocity Method (also known as Doppler Spectroscopy or the Doppler Method). The purpose of this paper is to derive the theoretical equation that is associated with the variation over time of a star's velocity along an observer's line-of-sight - a quantity that can be precisely measured with an optical telescope - from first principles. In other words, we will begin with the seemingly simple situation of a planet orbiting a star (often referred to as the "parent star" or, the term that will be used throughout this paper, the "host star") and then start applying basic principles of physics and utilize mathematical tools in order to analyze and describe the star-planet system. The end result will be a complete and detailed derivation of the Radial Velocity Equation.


Unpublished Paper:

A Detailed Derivation of the Radial Velocity Equation  (view derivation in .pdf format - 7.2 MB)


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An HI Absorption Survey of the Central 250 pc of the Galactic Center

VLA Galactic Center HI AbsorptionUI LogoAdviser: Dr. Cornelia Lang
Position: Undergraduate Research Assistant
Location: UI Department of Physics and Astronomy, Iowa City, IA
Time Period: January 2006 - May 2006, August 2006 - May 2007

Description of Project:

Using the Very Large Array (VLA), I helped to carry out a study of atomic hydrogen (HI) absorption toward the central 250 parsecs (pc) of the Galactic Center (GC). The spatial resolution of 15" and velocity resolution of 2.5 km/s were much improved over previous HI absorption studies toward this region. I presented (1) kinematics of the HI component toward many well-known GC sources, (2) distance constraints to 40 well-known GC sources, and (3) information on the line-of-sight arrangement of the interstellar medium (ISM) in the Sgr C complex. I also contributed to the creation of a website for the astronomical community which includes the following resources to download: continuum images, HI absorption profiles, and HI data of all major regions of interest in the GC. Finally, I wrote up the results in a 46-page senior honors thesis.


Coauthored Publication:

"A High-resolution Survey of H I Absorption Toward the Central 200 pc of the Galactic Center"
C. C. Lang, W. M. Goss, C. Cyganowski, and K. I. Clubb.
2010, ApJS, 191, 275
[ADS]


Honors Thesis:

An HI Absorption Survey of the Central 250 pc of the Galactic Center: Distance Constraints & Understanding the Complex ISM  (view thesis in .pdf format - 0.88 MB)


Two Oral Presentations:

University of Iowa Department of Physics & Astronomy Colloquium  (view presentation in .pdf format - 0.79 MB)
University of Iowa Joint Astrophysics/Space Physics Seminar  (view presentation in .pdf format - 1.10 MB)


Two Poster Presentations (including one at a conference):

University of Iowa Spring Undergraduate Research Forum 2007  (view poster in .pdf format - 0.22 MB)
Awarded (Best Natural Sciences Poster Presentation) based on the effectiveness of my poster in conveying my completed work.

"An HI Absorption Survey of the Central 250 pc of the Galactic Center: Distance Constraints & Understanding the Complex ISM"
K. Clubb, C. C. Lang, and W. M. Goss.
2006, Bulletin of the American Astronomical Society, 38, #172.24
[ADS]  (view poster in .pdf format - 0.22 MB)


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Streaming Real-time Data from the ATA to the Internet

Allen Telescope ArraySETI Institute LogoAdviser: Dr. Gerry Harp
Position: NSF REU Student in Astrobiology
Location: SETI Institute, Mountain View, CA
Time Period: June 2006 - August 2006

Description of Project:

The goals of this project were to (1) establish a live streaming facility at the ATA (Allen Telescope Array) by continuously broadcasting the audio output of real-time data from the ATA to the Internet, (2) record the audio output of several radio-emitting sources such as stars, planets, and man-made satellites whose data can be accessed anytime, (3) create a website with information pertaining to SETI, the ATA, radio astronomy, and links to both our live and previously recorded broadcasts for use in museums and schools as well as anyone with internet access, and (4) give the public at large a better understanding of the benefits of SETI and radio astronomy research.


Public Outreach:

Created Allen Telescope Array Live!, a website which broadcasts the audio output of both archived and real-time streaming data from the ATA in order to foster the general public's interest in SETI and the science of radio astronomy


Four Oral Presentations:

University of Iowa Joint Astrophysics/Space Physics Seminar  (view presentation in .pdf format - 6.73 MB)
University of Iowa Department of Physics & Astronomy Colloquium  (view presentation in .pdf format - 6.45 MB)
NASA Astrobiology Institute Summer Student Seminar Series 2006  (view presentation in .pdf format - 6.45 MB)
SETI Institute Summer Student Presentation Series 2006  (view presentation in .pdf format - 4.70 MB)


Poster Presentation:

NASA Ames 2006 Summer Science Day Poster Session  (view poster in .pdf format - 0.42 MB)

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Radio Observations of Pulsar Wind Nebula G54.1+0.3

Pulsar Wind Nebula G54.1+0.3UI LogoAdviser: Dr. Cornelia Lang
Position: Undergraduate Research Assistant
Location: UI Department of Physics and Astronomy, Iowa City, IA
Time Period: August 2004 - May 2005, August 2005 - December 2005

Description of Project:

Compact radio emission from the pulsar wind nebula (PWN) known as SNR G54.1+0.3 (G54) was analyzed in order to determine how similar it is to the well-known Crab nebula. I used AIPS (Astronomical Image Processing System) software to process several sets of low-frequency data from the Very Large Array, made an image of G54 at each frequency, and determined its spectral index. I then used AIPS to study the linearly polarized emission and the rotation measure. Finally, I was successfully able to perform advanced AIPS algorithms to determine the intrinsic magnetic field structure of G54. Few such studies have been done for PWN and the magnetic field in G54 is highly ordered and well organized.


Coauthored Publication:

"The Radio Properties and Magnetic Field Configuration in the Crab-Like Pulsar Wind Nebula G54.1+0.3"
C. C. Lang, Q. D. Wang, F. Lu, and K. I. Clubb.
2010, ApJ, 709, 1125
[ADS]


Public Outreach and Contributed Poster Presentation:

I had the unique opportunity to co-present a poster of our research on G54 to a group of the University of Iowa's most generous contributors and alumni at the Fall 2005 University of Iowa Dean's Club Dinner.


Contributed Conference Poster:

"The Radio Properties and Magnetic Field Configuration in Pulsar Wind Nebula G54.1+0.3"
C. C. Lang, F. Lu, Q. D. Wang, and K. I. Clubb.
2006, Bulletin of the American Astronomical Society, 38, #159.14
[ADS]

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TFIT: A Photometry Package for Mixed-Resolution Datasets

Hubble Space TelescopeSTScI LogoAdviser: Dr. Harry Ferguson
Position: Summer Intern/Research Assistant
Location: Space Telescope Science Institute, Baltimore, MD
Time Period: May 2005 - August 2005

Description of Project:

The driving force behind our research was developing a software package called TFIT to improve the photometry of faint galaxies and crowded fields of galaxies. I learned how to use Python to run simulations on actual data from GOODS (Great Observatories Origins Deep Survey). I also analyzed the results of the simulations and used Python to create graphs which were used to compare the performance of TFIT to the current photometry package SExtractor. TFIT was introduced at the Spitzer Legacy poster session at the 207th AAS meeting in January 2006.


Coauthored Publication:

"TFIT: A Photometry Package Using Prior Information for Mixed-Resolution Data Sets"
V. G. Laidler, C. Papovich, N. A. Grogin, R. Idzi, M. Dickinson, H. C. Ferguson, B. Hilbert, K. Clubb, and S. Ravindranath.
2007, PASP, 119, 1325
[ADS]


Public Outreach:

In August 2005, I had my first putlic outreach opportunity when I was interviewed by NPR's Morning Edition to describe my experience working at the research center responsible for operating the Hubble Space Telescope (for a series about college students with "cool summer jobs").


Two Oral Presentations:

University of Iowa Department of Physics & Astronomy Colloquium  (view presentation in .pdf format - 1.34 MB)
Space Telescope Science Institute Summer Student Presentation Series  (view presentation in .pdf format - 1.32 MB)


Two Contributed Conference Posters:

"TFIT: A Photometry Package for Mixed-Resolution Datasets"
V. G. Laidler, N. Grogin, K. Clubb, H. Ferguson, C. Papovich, M. Dickinson, R. Idzi, E. MacDonald, M. Ouchi, and B. Mobasher.
2006, Astronomical Society of the Pacific Conference Series, 351, 228
[ADS]

"Improved Crowded-Field Photometry of GOODS IRAC Imaging with the TFIT Package"
N. A. Grogin, V. G. Laidler, H. C. Ferguson, K. Clubb, C. J. Papovich, M. E. Dickinson, R. Idzi, E. C. MacDonald, M. Ouchi, and B. Mobasher.
2005, Bulletin of the American Astronomical Society, 37, 1250
[ADS]

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Radio Observations of Galactic Luminous Blue Variable Stars

Luminous Blue Variable StarUI LogoAdviser: Dr. Cornelia Lang
Position: Undergraduate Research Assistant
Location: UI Department of Physics and Astronomy, Iowa City, IA
Time Period: May 2004 - July 2004

Description of Project:

Information concerning the detection, morphology, and spectral index of six Luminous Blue Variable (LBV) stars was gathered by analyzing the nebulae formed by their stellar winds. I used AIPS (Astronomical Image Processing System) software to process several sets of high-frequency data taken with the VLA (Very Large Array), producing images of the sources in order to determine their radio flux densities. This project also included a trip to the VLA and its headquarters in Socorro, NM where we worked with the data soon after it was taken!

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