THE WFC3 INFRARED SPECTROSCOPIC PARALLEL (WISP) SURVEY
THE WFC3 INFRARED SPECTROSCOPIC PARALLEL (WISP) SURVEY
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WFC3 红外光谱平行 (WISP) 调查
DOI:
10.1088/0004-637x/723/1/104
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Atek H
中科院分区:
文献类型:
--
作者:
Atek H
We present the WFC3 Infrared Spectroscopic Parallel (WISP) Survey. WISP is obtaining slitless, near-infrared grism spectroscopy of∼ 90 independent, high-latitude fields by observing in the pure-parallel mode with the Wide Field Camera Three on the Hubble Space Telescope for a total of∼ 250 orbits. Spectra are obtained with the G 102 (λ= 0.8–1.17 μm, R∼ 210) and G 141 grisms (λ= 1.11–1.67 μm, R∼ 130), together with direct imaging in the J and H bands (F110W and F140W, respectively). In the present paper, we present the first results from 19 WISP fields, covering approximately 63 arcmin 2. For typical exposure times (∼ 6400 s in G 102 and∼ 2700 s in G 141), we reach 5σ detection limits for emission lines of f∼ 5× 10− 17 erg s− 1 cm− 2 for compact objects. Typical direct imaging 5σ limits are 26.3 and 26.1 mag.(AB) in F110W and F140W, respectively. Restricting ourselves to the lines measured with the highest confidence, we present a list of 328 emission lines, in 229 objects, in a redshift range 0.3< z< 3. The single-line emitters are likely to be a mix of Hα and [O iii] 5007, 4959 Å, with Hα predominating. The overall surface density of high-confidence emission-line objects in our sample is approximately 4 per arcmin 2. These first fields show high equivalent width sources, active galactic nucleus, and post-starburst galaxies. The median observed star formation rate (SFR) of our Hα-selected sample is 4 M☉ yr− 1. At intermediate redshifts, we detect emission lines in galaxies as faint as H 140∼ 25, or M R<− 19, and are sensitive to SFRs down to less than 1 M☉ yr− 1. The slitless grisms on WFC3 provide a unique opportunity to study the spectral properties of galaxies much fainter than L* at the peak of the galaxy assembly epoch.
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DOI:
10.1088/0004-6256/135/4/1624
发表时间:
2008
期刊:
The Astronomical Journal
影响因子:
--
作者:
A. Straughn;G. Meurer;N. Pirzkal;S. Cohen;S. Malhotra;J. Rhoads;R. Windhorst;J. Gardner;N. Hathi;Chun Xu;C. Gronwall;A. Koekemoer;J. Walsh;S. D. Alighieri
通讯作者:
S. D. Alighieri
DOI:
10.1086/521333
发表时间:
2007-10
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Y. Kakazu;L. Cowie;E. Hu
通讯作者:
Y. Kakazu;L. Cowie;E. Hu
DOI:
10.1086/301454
发表时间:
2000
期刊:
The Astronomical Journal
影响因子:
--
作者:
Lin Yan;P. McCarthy;R. Weymann;M. Malkan;H. Teplitz;L. Storrie;Malcolm G. Smith;A. Dressler
通讯作者:
A. Dressler
DOI:
10.1111/j.1365-2966.2006.10484.x
发表时间:
2006
影响因子:
4.8
作者:
M. Doherty;A. Bunker;R. Sharp;G. Dalton;I. Parry;I. Lewis
通讯作者:
I. Lewis
DOI:
10.1086/498129
发表时间:
2005
期刊:
The Astrophysical Journal
影响因子:
--
作者:
N. Pirzkal;Chun Xu;I. Ferreras;S. Malhotra;B. Mobasher;J. Rhoads;A. Pasquali;N. Panagia;A. Koekemoer;H. Ferguson;C. Gronwall
通讯作者:
C. Gronwall