UVUDF: ULTRAVIOLET THROUGH NEAR-INFRARED CATALOG AND PHOTOMETRIC REDSHIFTS OF GALAXIES IN THE HUBBLE ULTRA DEEP FIELD

Marc Rafelski, Harry I. Teplitz, Jonathan P. Gardner, Dan Coe, Nicholas A. Bond, Anton M. Koekemoer, Norman Grogin, Peter Kurczynski, Elizabeth J. McGrath, Matthew Bourque, Hakim Atek, Thomas M. Brown, James W. Colbert, Alex Codoreanu, Henry C. Ferguson, Steven L. Finkelstein, Eric Gawiser, Mauro Giavalisco, Caryl Gronwall, Daniel J. HanishKyoung Soo Lee, Vihang Mehta, Duilia F. De Mello, Swara Ravindranath, Russell E. Ryan, Claudia Scarlata, Brian Siana, Emmaris Soto, Elysse N. Voyer

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

We present photometry and derived redshifts from up to eleven bandpasses for 9927 galaxies in the Hubble Ultra Deep field (UDF), covering an observed wavelength range from the near-ultraviolet (NUV) to the near-infrared (NIR) with Hubble Space Telescope observations. Our Wide Field Camera 3 (WFC3)/UV F225W, F275W, and F336W image mosaics from the ultra-violet UDF (UVUDF) imaging campaign are newly calibrated to correct for charge transfer inefficiency, and use new dark calibrations to minimize background gradients and pattern noise. Our NIR WFC3/IR image mosaics combine the imaging from the UDF09 and UDF12 campaigns with CANDELS data to provide NIR coverage for the entire UDF field of view. We use aperture-matched point-spread function corrected photometry to measure photometric redshifts in the UDF, sampling both the Lyman break and Balmer break of galaxies at z ∼ 0.8-3.4, and one of the breaks over the rest of the redshift range. Our comparison of these results with a compilation of robust spectroscopic redshifts shows an improvement in the galaxy photometric redshifts by a factor of two in scatter and a factor three in outlier fraction (OLF) over previous UDF catalogs. The inclusion of the new NUV data is responsible for a factor of two decrease in the OLF compared to redshifts determined from only the optical and NIR data, and improves the scatter at z < 0.5 and at z > 2. The panchromatic coverage of the UDF from the NUV through the NIR yields robust photometric redshifts of the UDF, with the lowest OLF available.

Original languageEnglish (US)
Article number31
JournalAstronomical Journal
Volume150
Issue number1
DOIs
StatePublished - Jul 1 2015

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catalogs
near infrared
galaxies
outlier
photometry
cameras
point spread functions
Hubble Space Telescope
field of view
coverings
apertures
sampling
charge transfer
inclusions
gradients
wavelengths
calibration
wavelength
mosaic

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Rafelski, M., Teplitz, H. I., Gardner, J. P., Coe, D., Bond, N. A., Koekemoer, A. M., ... Voyer, E. N. (2015). UVUDF: ULTRAVIOLET THROUGH NEAR-INFRARED CATALOG AND PHOTOMETRIC REDSHIFTS OF GALAXIES IN THE HUBBLE ULTRA DEEP FIELD. Astronomical Journal, 150(1), [31]. https://doi.org/10.1088/0004-6256/150/1/31
Rafelski, Marc ; Teplitz, Harry I. ; Gardner, Jonathan P. ; Coe, Dan ; Bond, Nicholas A. ; Koekemoer, Anton M. ; Grogin, Norman ; Kurczynski, Peter ; McGrath, Elizabeth J. ; Bourque, Matthew ; Atek, Hakim ; Brown, Thomas M. ; Colbert, James W. ; Codoreanu, Alex ; Ferguson, Henry C. ; Finkelstein, Steven L. ; Gawiser, Eric ; Giavalisco, Mauro ; Gronwall, Caryl ; Hanish, Daniel J. ; Lee, Kyoung Soo ; Mehta, Vihang ; De Mello, Duilia F. ; Ravindranath, Swara ; Ryan, Russell E. ; Scarlata, Claudia ; Siana, Brian ; Soto, Emmaris ; Voyer, Elysse N. / UVUDF : ULTRAVIOLET THROUGH NEAR-INFRARED CATALOG AND PHOTOMETRIC REDSHIFTS OF GALAXIES IN THE HUBBLE ULTRA DEEP FIELD. In: Astronomical Journal. 2015 ; Vol. 150, No. 1.
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title = "UVUDF: ULTRAVIOLET THROUGH NEAR-INFRARED CATALOG AND PHOTOMETRIC REDSHIFTS OF GALAXIES IN THE HUBBLE ULTRA DEEP FIELD",
abstract = "We present photometry and derived redshifts from up to eleven bandpasses for 9927 galaxies in the Hubble Ultra Deep field (UDF), covering an observed wavelength range from the near-ultraviolet (NUV) to the near-infrared (NIR) with Hubble Space Telescope observations. Our Wide Field Camera 3 (WFC3)/UV F225W, F275W, and F336W image mosaics from the ultra-violet UDF (UVUDF) imaging campaign are newly calibrated to correct for charge transfer inefficiency, and use new dark calibrations to minimize background gradients and pattern noise. Our NIR WFC3/IR image mosaics combine the imaging from the UDF09 and UDF12 campaigns with CANDELS data to provide NIR coverage for the entire UDF field of view. We use aperture-matched point-spread function corrected photometry to measure photometric redshifts in the UDF, sampling both the Lyman break and Balmer break of galaxies at z ∼ 0.8-3.4, and one of the breaks over the rest of the redshift range. Our comparison of these results with a compilation of robust spectroscopic redshifts shows an improvement in the galaxy photometric redshifts by a factor of two in scatter and a factor three in outlier fraction (OLF) over previous UDF catalogs. The inclusion of the new NUV data is responsible for a factor of two decrease in the OLF compared to redshifts determined from only the optical and NIR data, and improves the scatter at z < 0.5 and at z > 2. The panchromatic coverage of the UDF from the NUV through the NIR yields robust photometric redshifts of the UDF, with the lowest OLF available.",
author = "Marc Rafelski and Teplitz, {Harry I.} and Gardner, {Jonathan P.} and Dan Coe and Bond, {Nicholas A.} and Koekemoer, {Anton M.} and Norman Grogin and Peter Kurczynski and McGrath, {Elizabeth J.} and Matthew Bourque and Hakim Atek and Brown, {Thomas M.} and Colbert, {James W.} and Alex Codoreanu and Ferguson, {Henry C.} and Finkelstein, {Steven L.} and Eric Gawiser and Mauro Giavalisco and Caryl Gronwall and Hanish, {Daniel J.} and Lee, {Kyoung Soo} and Vihang Mehta and {De Mello}, {Duilia F.} and Swara Ravindranath and Ryan, {Russell E.} and Claudia Scarlata and Brian Siana and Emmaris Soto and Voyer, {Elysse N.}",
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Rafelski, M, Teplitz, HI, Gardner, JP, Coe, D, Bond, NA, Koekemoer, AM, Grogin, N, Kurczynski, P, McGrath, EJ, Bourque, M, Atek, H, Brown, TM, Colbert, JW, Codoreanu, A, Ferguson, HC, Finkelstein, SL, Gawiser, E, Giavalisco, M, Gronwall, C, Hanish, DJ, Lee, KS, Mehta, V, De Mello, DF, Ravindranath, S, Ryan, RE, Scarlata, C, Siana, B, Soto, E & Voyer, EN 2015, 'UVUDF: ULTRAVIOLET THROUGH NEAR-INFRARED CATALOG AND PHOTOMETRIC REDSHIFTS OF GALAXIES IN THE HUBBLE ULTRA DEEP FIELD', Astronomical Journal, vol. 150, no. 1, 31. https://doi.org/10.1088/0004-6256/150/1/31

UVUDF : ULTRAVIOLET THROUGH NEAR-INFRARED CATALOG AND PHOTOMETRIC REDSHIFTS OF GALAXIES IN THE HUBBLE ULTRA DEEP FIELD. / Rafelski, Marc; Teplitz, Harry I.; Gardner, Jonathan P.; Coe, Dan; Bond, Nicholas A.; Koekemoer, Anton M.; Grogin, Norman; Kurczynski, Peter; McGrath, Elizabeth J.; Bourque, Matthew; Atek, Hakim; Brown, Thomas M.; Colbert, James W.; Codoreanu, Alex; Ferguson, Henry C.; Finkelstein, Steven L.; Gawiser, Eric; Giavalisco, Mauro; Gronwall, Caryl; Hanish, Daniel J.; Lee, Kyoung Soo; Mehta, Vihang; De Mello, Duilia F.; Ravindranath, Swara; Ryan, Russell E.; Scarlata, Claudia; Siana, Brian; Soto, Emmaris; Voyer, Elysse N.

In: Astronomical Journal, Vol. 150, No. 1, 31, 01.07.2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - UVUDF

T2 - ULTRAVIOLET THROUGH NEAR-INFRARED CATALOG AND PHOTOMETRIC REDSHIFTS OF GALAXIES IN THE HUBBLE ULTRA DEEP FIELD

AU - Rafelski, Marc

AU - Teplitz, Harry I.

AU - Gardner, Jonathan P.

AU - Coe, Dan

AU - Bond, Nicholas A.

AU - Koekemoer, Anton M.

AU - Grogin, Norman

AU - Kurczynski, Peter

AU - McGrath, Elizabeth J.

AU - Bourque, Matthew

AU - Atek, Hakim

AU - Brown, Thomas M.

AU - Colbert, James W.

AU - Codoreanu, Alex

AU - Ferguson, Henry C.

AU - Finkelstein, Steven L.

AU - Gawiser, Eric

AU - Giavalisco, Mauro

AU - Gronwall, Caryl

AU - Hanish, Daniel J.

AU - Lee, Kyoung Soo

AU - Mehta, Vihang

AU - De Mello, Duilia F.

AU - Ravindranath, Swara

AU - Ryan, Russell E.

AU - Scarlata, Claudia

AU - Siana, Brian

AU - Soto, Emmaris

AU - Voyer, Elysse N.

PY - 2015/7/1

Y1 - 2015/7/1

N2 - We present photometry and derived redshifts from up to eleven bandpasses for 9927 galaxies in the Hubble Ultra Deep field (UDF), covering an observed wavelength range from the near-ultraviolet (NUV) to the near-infrared (NIR) with Hubble Space Telescope observations. Our Wide Field Camera 3 (WFC3)/UV F225W, F275W, and F336W image mosaics from the ultra-violet UDF (UVUDF) imaging campaign are newly calibrated to correct for charge transfer inefficiency, and use new dark calibrations to minimize background gradients and pattern noise. Our NIR WFC3/IR image mosaics combine the imaging from the UDF09 and UDF12 campaigns with CANDELS data to provide NIR coverage for the entire UDF field of view. We use aperture-matched point-spread function corrected photometry to measure photometric redshifts in the UDF, sampling both the Lyman break and Balmer break of galaxies at z ∼ 0.8-3.4, and one of the breaks over the rest of the redshift range. Our comparison of these results with a compilation of robust spectroscopic redshifts shows an improvement in the galaxy photometric redshifts by a factor of two in scatter and a factor three in outlier fraction (OLF) over previous UDF catalogs. The inclusion of the new NUV data is responsible for a factor of two decrease in the OLF compared to redshifts determined from only the optical and NIR data, and improves the scatter at z < 0.5 and at z > 2. The panchromatic coverage of the UDF from the NUV through the NIR yields robust photometric redshifts of the UDF, with the lowest OLF available.

AB - We present photometry and derived redshifts from up to eleven bandpasses for 9927 galaxies in the Hubble Ultra Deep field (UDF), covering an observed wavelength range from the near-ultraviolet (NUV) to the near-infrared (NIR) with Hubble Space Telescope observations. Our Wide Field Camera 3 (WFC3)/UV F225W, F275W, and F336W image mosaics from the ultra-violet UDF (UVUDF) imaging campaign are newly calibrated to correct for charge transfer inefficiency, and use new dark calibrations to minimize background gradients and pattern noise. Our NIR WFC3/IR image mosaics combine the imaging from the UDF09 and UDF12 campaigns with CANDELS data to provide NIR coverage for the entire UDF field of view. We use aperture-matched point-spread function corrected photometry to measure photometric redshifts in the UDF, sampling both the Lyman break and Balmer break of galaxies at z ∼ 0.8-3.4, and one of the breaks over the rest of the redshift range. Our comparison of these results with a compilation of robust spectroscopic redshifts shows an improvement in the galaxy photometric redshifts by a factor of two in scatter and a factor three in outlier fraction (OLF) over previous UDF catalogs. The inclusion of the new NUV data is responsible for a factor of two decrease in the OLF compared to redshifts determined from only the optical and NIR data, and improves the scatter at z < 0.5 and at z > 2. The panchromatic coverage of the UDF from the NUV through the NIR yields robust photometric redshifts of the UDF, with the lowest OLF available.

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