Publications
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The Rest-Frame Optical Morphology of Emission Line Galaxies at 2 < z < 3:
Evidence for Inside-Out Formation in Low-Mass Galaxies
Hagen, A., Bond,
N. A., Ciardullo, R., Gronwall, C., Gawiser, E., Bowman, W., Bridge, J. S.,
Grasshorn Gebhardt, H. S., Schneider, D. P.
eprint arXiv:1610.01163
HST Emission Line Galaxies at z ~ 2: Comparing Physical Properties of
Lyman Alpha and Optical Emission Line Selected Galaxies
Hagen, A.,
Zeimann, G. R., Behrens, C., Ciardullo, R., Grasshorn Gebhardt, H. S.,
Gronwall, C., Bridge, J. S., Fox, D. B., Schneider, D. P., Trump, J. R., et
al.
The Astrophysical Journal, Volume 817, Issue 1, article id. 79,
Spectral Energy Distribution Fitting of HETDEX Pilot Survey Lyα Emitters
in COSMOS and GOODS-N
Hagen, A., Ciardullo, R., Gronwall, C., Acquaviva,
V., Bridge, J., Zeimann, G. R., Blanc, G. A., Bond, N. A., Finkelstein, S.
L., Song, M., et al.
The Astrophysical Journal, Volume 786, Issue 1,
article id. 59,
The Astropy Problem
Muna, D., Alexander, M., Allen, A., Ashley, R.,
Asmus, D., Azzollini, R., Bannister, M., Beaton, R., Benson, A., Berriman,
G. B., et al.
eprint arXiv:1610.03159
Is the cluster environment quenching the Seyfert activity in elliptical
and spiral galaxies?
de Souza, R. S., Dantas, M. L. L., Krone-Martins,
A., Cameron, E., Coelho, P., Hattab, M. W., de Val-Borro, M., Hilbe, J. M.,
Elliott, J., Hagen, A., et al.
Monthly Notices of the Royal Astronomical
Society, Volume 461, Issue 2, p.2115-2125
The Thirteenth Data Release of the Sloan Digital Sky Survey: First
Spectroscopic Data from the SDSS-IV Survey MApping Nearby Galaxies at
Apache Point Observatory
SDSS Collaboration, Albareti, F. D., Allende
Prieto, C., Almeida, A., Anders, F., Anderson, S., Andrews, B. H.,
Aragon-Salamanca, A., Argudo-Fernandez, M., Armengaud, E., et al.
eprint
arXiv:1608.02013
On the Classification of UGC 1382 as a Giant Low Surface Brightness
Galaxy
Hagen, L. M. Z., Seibert, M., Hagen, A., Nyland, K., Neill, J.
D., Treyer, M., Young, L. M., Rich, J. A., Madore, B. F.
The Astrophysical
Journal, Volume 826, Issue 2, article id. 210,
Young, Star-forming Galaxies and Their Local Counterparts: The Evolving
Relationship of Mass-SFR-Metallicity Since z ˜ 2.1
Grasshorn Gebhardt,
H. S., Zeimann, G. R., Ciardullo, R., Gronwall, C., Hagen, A., Bridge, J.
S., Schneider, D. P., Trump, J. R.
The Astrophysical Journal, Volume 817,
Issue 1, article id. 10,
The Dust Attenuation Curve versus Stellar Mass for Emission Line Galaxies
at z ~ 2
Zeimann, G. R., Ciardullo, R., Gronwall, C., Bridge, J.,
Brooks, H., Fox, D., Gawiser, E., Gebhardt, H., Hagen, A., Schneider, D.
P., et al.
The Astrophysical Journal, Volume 814, Issue 2, article id.
162,
Bayesian Redshift Classification of Emission-line Galaxies with
Photometric Equivalent Widths
Leung, A. S., Acquaviva, V., Gawiser, E.,
Ciardullo, R., Komatsu, E., Malz, A. I., Zeimann, G. R., Bridge, J. S.,
Drory, N., Feldmeier, J. J., et al.
eprint arXiv:1510.07043
The Biases of Optical Line-Ratio Selection for Active Galactic Nuclei and
the Intrinsic Relationship between Black Hole Accretion and Galaxy Star
Formation
Trump, J. R., Sun, M., Zeimann, G. R., Luck, C., Bridge, J.
S., Grier, C. J., Hagen, A., Juneau, S., Montero-Dorta, A., Rosario, D. J.,
et al.
The Astrophysical Journal, Volume 811, Issue 1, article id. 26,
Learning from FITS: Limitations in use in modern astronomical research
Thomas, B., Jenness, T., Economou, F., Greenfield, P., Hirst, P., Berry, D.
S., Bray, E., Gray, N., Muna, D., Turner, J., et al.
Astronomy and
Computing, Volume 12, p. 133-145.
The Evolution of the Far-UV Luminosity Function and Star Formation Rate
Density of the Chandra Deep Field South from z = 0.2 to 1.2 with
Swift/UVOT
Hagen, L. M. Z., Hoversten, E. A., Gronwall, C., Wolf, C.,
Siegel, M. H., Page, M., Hagen, A.
The Astrophysical Journal, Volume 808,
Issue 2, article id. 178,
Surveying Galaxy Proto-clusters in Emission: A Large-scale Structure at z
= 2.44 and the Outlook for HETDEX
Chiang, Y.-K., Overzier, R. A.,
Gebhardt, K., Finkelstein, S. L., Chiang, C.-T., Hill, G. J., Blanc, G. A.,
Drory, N., Chonis, T. S., Zeimann, G. R., et al.
The Astrophysical
Journal, Volume 808, Issue 1, article id. 37,
Spectroscopic needs for imaging dark energy experiments
Newman, J. A.,
Abate, A., Abdalla, F. B., Allam, S., Allen, S. W., Ansari, R., Bailey, S.,
Barkhouse, W. A., Beers, T. C., Blanton, M. R., et al.
Astroparticle
Physics, Volume 63, p. 81-100.
Physical and Morphological Properties of [O II] Emitting Galaxies in the
HETDEX Pilot Survey
Bridge, J. S., Gronwall, C., Ciardullo, R., Hagen,
A., Zeimann, G., Malz, A. I., Acquaviva, V., Schneider, D. P., Drory, N.,
Gebhardt, K., et al.
The Astrophysical Journal, Volume 799, Issue 2,
article id. 205,
Hubble Space Telescope Emission-line Galaxies at z ~ 2: The Mystery of
Neon
Zeimann, G. R., Ciardullo, R., Gebhardt, H., Gronwall, C., Hagen,
A., Trump, J. R., Bridge, J. S., Luo, B., Schneider, D. P.
The
Astrophysical Journal, Volume 798, Issue 1, article id. 29,
Hubble Space Telescope Emission Line Galaxies at z ~ 2: The Lyα Escape
Fraction
Ciardullo, R., Zeimann, G. R., Gronwall, C., Gebhardt, H.,
Schneider, D. P., Hagen, A., Malz, A. I., Blanc, G. A., Hill, G. J., Drory,
N., et al.
The Astrophysical Journal, Volume 796, Issue 1, article id. 64,
The HETDEX Pilot Survey. V. The Physical Origin of Lyα Emitters Probed by
Near-infrared Spectroscopy
Song, M., Finkelstein, S. L., Gebhardt, K.,
Hill, G. J., Drory, N., Ashby, M. L. N., Blanc, G. A., Bridge, J., Chonis,
T., Ciardullo, R., et al.
The Astrophysical Journal, Volume 791, Issue 1,
article id. 3,
3D-HST Emission Line Galaxies at z ~ 2: Discrepancies in the Optical/UV
Star Formation Rates
Zeimann, G. R., Ciardullo, R., Gebhardt, H.,
Gronwall, C., Schneider, D. P., Hagen, A., Bridge, J. S., Feldmeier, J.,
Trump, J. R.
The Astrophysical Journal, Volume 790, Issue 2, article id.
113,
Studying Gender in Conference Talks -- data from the 223rd meeting of the
American Astronomical Society
Davenport, J. R. A., Fouesneau, M., Grand,
E., Hagen, A., Poppenhaeger, K., Watkins, L. L.
eprint arXiv:1403.3091
To Stack or Not to Stack: Spectral Energy Distribution Properties of
Lyα-emitting Galaxies at z = 2.1
Vargas, C. J., Bish, H., Acquaviva, V.,
Gawiser, E., Finkelstein, S. L., Ciardullo, R., Ashby, M. L. N., Feldmeier,
J., Ferguson, H., Gronwall, C., et al.
The Astrophysical Journal, Volume
783, Issue 1, article id. 26,
Galaxy redshift surveys with sparse sampling
Chiang, C.-T., Wullstein,
P., Jeong, D., Komatsu, E., Blanc, G. A., Ciardullo, R., Drory, N.,
Fabricius, M., Finkelstein, S., Gebhardt, K., et al.
Journal of Cosmology
and Astroparticle Physics, Issue 12, article id. 030, (2013).
Searching for Neutral Hydrogen Halos around z ~ 2.1 and z ~ 3.1 Lyα
Emitting Galaxies
Feldmeier, J. J., Hagen, A., Ciardullo, R., Gronwall,
C., Gawiser, E., Guaita, L., Hagen, L. M. Z., Bond, N. A., Acquaviva, V.,
Blanc, G. A., et al.
The Astrophysical Journal, Volume 776, Issue 2,
article id. 75,
The Spectrally Resolved Lyα Emission of Three Lyα-selected Field Galaxies
at z ~ 2.4 from the HETDEX Pilot Survey
Chonis, T. S., Blanc, G. A.,
Hill, G. J., Adams, J. J., Finkelstein, S. L., Gebhardt, K., Kollmeier, J.
A., Ciardullo, R., Drory, N., Gronwall, C., et al.
The Astrophysical
Journal, Volume 775, Issue 2, article id. 99,
Mid-infrared Photometric Analysis of Main Belt Asteroids: A Technique for
Color-Color Differentiation from Background Astrophysical Sources
Bhattacharya, B., Noriega-Crespo, A., Penprase, B. E., Meadows, V. S.,
Salvato, M., Aussel, H., Frayer, D., Ilbert, O., Le Floc'h, E., Looper, D.,
et al.
The Astrophysical Journal, Volume 720, Issue 1, pp. 114-129 (2010).
Conference Proceedings
The SDSS-IV in 2015: Report of the Committee on the Participation of Women in the Sloan Digital Sky SurveyDiamond-Stanic, A. M., Lucatello, S., Aragon-Salamanca, A., Cherinka, B., Cunha, K. M. L., Gillespie, B. A., Hagen, A., Jones, A., Kinemuchi, K., Lundgren, B., et al.
American Astronomical Society, AAS Meeting #227, id.349.03
HST Emission-Line Galaxies at z ~ 2: The Mystery of Neon
Zeimann, G., Ciardullo, R., Gronwall, C., Gebhardt, H., Hagen, A., Bridge, J., Trump, J., Schneider, D. P.
American Astronomical Society, AAS Meeting #225, id.206.04
The HETDEX Pilot Survey & 3DHST: What Makes a Lyman-alpha Emitter?
Hagen, A., Zeimann, G., Gronwall, C., Ciardullo, R., Bridge, J., Hetdex
American Astronomical Society, AAS Meeting #225, id.143.50
Further Studies of Lyman-alpha Galaxy Halos in MUSYC-LAE Fields
Feldmeier, J. J., Hagen, A., Ciardullo, R., Gawiser, E. J., Gronwall, C., MUSYC Collaboration
American Astronomical Society, AAS Meeting #223, id.246.43
Constraints on Lyα Blob Number Densities at 2.1 and 3.1
Hay, J., Ciardullo, R., Feldmeier, J. J., Gronwall, C., Hagen, A., MUSYC Collaboration
American Astronomical Society, AAS Meeting #223, id.246.40
Understanding the Physical Conditions that Drive Line Emission in Nebular Regions of High-Redshift Galaxies
Zeimann, G., Gebhardt, H., Ciardullo, R., Gronwall, C., Hagen, A.
American Astronomical Society, AAS Meeting #223, id.246.38
The Fundamental Metallicity Relation of High-Redshift Emission-Line Galaxies
Gebhardt, H., Zeimann, G., Ciardullo, R., Gronwall, C., Hagen, A.
American Astronomical Society, AAS Meeting #223, id.246.37
Spectral Energy Distribution Fitting of HETDEX Pilot Survey Lyman-alpha Emitters in COSMOS and GOODS-N
Hagen, A., Gronwall, C., Ciardullo, R., Acquaviva, V., Zeimann, G., Bridge, J., Gawiser, E. J., Bond, N. A., HETDEX Team
American Astronomical Society, AAS Meeting #223, id.246.31
Physical and Morphological Parameters of [O II] Emitting Galaxies in the HETDEX Pilot Survey
Bridge, J., Gronwall, C., Ciardullo, R., Hagen, A., Zeimann, G., HETDEX Collaboration
American Astronomical Society, AAS Meeting #223, id.246.24
ExploreNEOs: A Search for Near-Earth Objects of Cometary Origin
Mommert, M., Harris, A. W., Trilling, D. E., Mueller, M., Hora, J. L., Delbo, M., Bottke, W. F., Emery, J. P., Fazio, G., Hagen, A. R., et al.
American Astronomical Society, DPS meeting #44, id.302.03
ExploreNEOs: The Warm Spitzer Near Earth Object Survey
Trilling, D. E., Hora, J. L., Mueller, M., Thomas, C. A., Harris, A. W., Hagen, A. R., Mommert, M., Benner, L., Bhattacharya, B., Bottke, W. F., et al.
Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16-20, 2012 in Niigata, Japan. LPI Contribution No. 1667, id.6485
A Search for Diffuse Ly-alpha Emitting Halos around z 2.1 and z 3.1 Ly-alpha Emitting Galaxies
Hagen, A., Feldmeier, J. J., Ciardullo, R., Gronwall, C., MUSYC Collaboration
American Astronomical Society, AAS Meeting #220, id.429.05
A Search For Lyman-alpha Halos Around Lyman-alpha Emitters At Z=2 And Z=3
Hagen, A., Ciardullo, R., Feldmeier, J., Gronwall, C., MUSYC Team
American Astronomical Society, AAS Meeting #219, id.441.14
Observations of Trans-Neptunian Objects at True Opposition
Verbiscer, A., Chanover, N., Holtzman, J., Hagen, A., Zernow, L., Orr, K.
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1682
ExploreNEOs: The Warm Spitzer Near Earth Object survey
Mueller, M., Trilling, D. E., Hora, J. L., Harris, A. W., Benner, L. A. M., Bhattacharya, B., Bottke, W. F., Chesley, S., Delbó, M., Emery, J. P., et al.
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.839
The Pomona College PINTO Internet telescope and Near Earth Asteroid Research
Penprase, B. E., Hagen, A., Trilling, D., Wilka, C.
American Astronomical Society, AAS Meeting #217, id.433.11;
Optical Observations of Asteroids in Support of ExploreNEOs
Hagen, A., Penprase, B., Bhattacharya, B., Thomas, C., Trilling, D.
American Astronomical Society, DPS meeting #42, id.39.35
A Ground-Based Observing Program in Support of the Warm Spitzer NEO Project
Bhattacharya, B., Trilling, D. E., Bottke, W. F., Chesley, S. R., Delbo, M., Emery, J. P., Fazio, G. G., Hagen, A. R., Harris, A. W., Hora, J., et al.
American Astronomical Society, AAS Meeting #215, id.334.04;
A Comprehensive Ground-based Observing Campaign for Spitzer-observed NEOs
Thomas, C. A., Trilling, D., Penprase, B., Emery, J., Hora, J., Mueller, M., Delbo, M., Fitzgerald, C., Hagen, A., Hickey, D., et al.
American Astronomical Society, DPS meeting #41, id.43.03
Optical Observations of Near Earth Objects in Support of the Warm Spitzer Space Telescope NEO Program
Bhattacharya, B., Hagen, A., Penprase, B., Jones, T., Trilling, D., Warm Spitzer NEO Survey Team
American Astronomical Society, DPS meeting #41, id.34.06
Optical Light Curves of 42 Isis Taken in Support of Spitzer Space Telescope Observations
Hagen, A., Bhattacharya, B., Penprase, B.
American Astronomical Society, AAS Meeting #213, id.401.09;
Talks
STScI Galaxy Journal Club Talk. September 2016.Penn State Astronomy \& Astrophysics Lunch Talk. August 2016.
Leibniz Institute for Astrophysics Potsdam Seminar. March 2016.
Geneva Observatory Presentation. March 2016.
Penn State Astronomy \& Astrophysics Lunch Talk. February 2016.
University of Ehime Seminar. August 2015.
University of Nagoya Seminar. July 2015.
University of Tokyo Institute for Physics and Mathematics of the Universe Seminar. July 2015.
National Astronomy Observatories of Japan Seminar. July 2015.
University of Kyoto Seminar. July 2015.
University of Tokyo Seminar. July 2015.
Stockholm University Invited Colloquium. April 2015.
Max Planck Institute f\"ur Astrophysik Galaxy Group Seminar. April 2015.
Max Planck Institute f\"ur Astrophysik Talk on Astropy. April 2015.
Pennsylvania State University, Astronomy and Astrophysics Department Lunch Talk. September 2014.
Franklin and Marshall College, Physics and Astronomy Department Colloquium. October 2013.
Workshop of Lyman-alpha as an Astrophysical Tool. Stockholm, Sweden. September 2013.
Pennsylvania State University, Astronomy and Astrophysics Department Lunch Talk. February 2013.