GRAPES, Grism Spectroscopy of the Hubble Ultra Deep Field: Description and Data Reduction
Creators
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Pirzkal, N.1
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Xu, C.1
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Malhotra, S.1
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Rhoads, J. E.1
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Koekemoer, A. M.1
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Moustakas, L. A.1
- Walsh, J. R.2
- Windhorst, R. A.3
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Daddi, E.2
- Cimatti, A.4
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Ferguson, H. C.1
- Gardner, Jonathan P.5
- Gronwall, C.6
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Haiman, Z.7
- Kummel, M.2
- Panagia, N.1
- Pasquali, A.8
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Stiavelli, M.1
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di Serego Alighieri, S.4
- Tsvetanov, Z.9, 10
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Vernet, J.4
- Yan, H.11
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1.
Space Telescope Science Institute
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2.
European Southern Observatory
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3.
Arizona State University
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4.
Arcetri Astrophysical Observatory
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5.
Goddard Space Flight Center
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6.
Pennsylvania State University
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7.
Columbia University
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8.
ETH Zurich
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9.
Johns Hopkins University
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10.
National Aeronautics and Space Administration
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11.
California Institute of Technology
Abstract
We present deep unbiased spectroscopy of the Hubble Ultra Deep Field (UDF) carried out using the slitless grism spectroscopy mode of the Advanced Camera for Surveys on the Hubble Space Telescope (HST). The Grism ACS Program for Extragalactic Science (GRAPES) achieves continuum detection as faint as z_(AB) = 27.2 using 40 orbits (9.2 × 10^4 s) on HST. The data were taken at four orientation angles to correct for the overlap of spectra. GRAPES data provide a unique, uninterrupted, low-resolution (R = 100) spectral coverage for 5500 Å < λ < 10500 Å and allow us to detect high-redshift galaxies at 4 < z < 7 whether they have Lyα lines or just show the Lyman break, as well as find low-luminosity active galactic nuclei in an unbiased fashion. This paper describes in detail the observations and the data reduction and examines the quality of the extracted spectra. Subsequent papers will deal with the analysis of the data. The extracted and calibrated GRAPES spectra will be available from MAST at STScI.
Additional Information
© 2004. The American Astronomical Society. Received 2004 March 18; accepted 2004 May 13. This work was supported by grant GO-09793.01-A from the Space Telescope Science Institute, which is operated by AURA under NASA contract NAS5-26555. This project has made use of the aXe extraction software, produced by ST-ECF, Garching, Germany.Attached Files
Published - Pirzkal_2004_ApJS_154_501.pdf
Accepted Version - 0403458.pdf
Files
0403458.pdf
Additional details
Identifiers
- Eprint ID
- 76232
- Resolver ID
- CaltechAUTHORS:20170408-164113638
Related works
- Describes
- https://arxiv.org/abs/astro-ph/0403458 (URL)
Funding
- NASA
- GO-09793.01-A
- NASA
- NAS5-26555
Dates
- Created
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2018-03-08Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field
Caltech Custom Metadata
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)