THE 3D-HST SURVEY: HUBBLE SPACE TELESCOPE WFC3/G141 GRISM SPECTRA, REDSHIFTS, AND EMISSION LINE MEASUREMENTS FOR ∼100,000 GALAXIES

By Ivelina G. Momcheva, G. Brammer, P. V. van Dokkum, R. Skelton, K. Whitaker, E. Nelson, M. Fumagalli, M. Maseda, J. Leja, M. Franx and 20 more. 2015

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We present reduced data and data products from the 3D-HST survey, a 248-orbit HST Treasury program. The survey obtained WFC3 G141 grism spectroscopy in four of the five CANDELS fields: AEGIS, COSMOS, GOODS-S, and UDS, along with WFC3 H140 imaging, parallel ACS G800L spectroscopy, and parallel I814 imaging. In a previous paper, we presented photometric catalogs in these four fields and in GOODS-N, the fifth CANDELS field. Here we describe and present the WFC3 G141 spectroscopic data, again augmented with data from GO-1600 in GOODS-N (PI: B. Weiner). We developed software to automatically and optimally extract interlaced two-dimensional (2D) and one-dimensional (1D) spectra for all objects in the Skelton et al. (2014) photometric catalogs. The 2D spectra and the multi-band photometry were fit simultaneously to determine redshifts and emission line strengths, taking the morphology of the galaxies explicitly into account. The resulting catalog has redshifts and line strengths (where available) for 22,548 unique objects down to (79,609 unique objects down to ). Of these, 5459 galaxies are at and 9621 are at , where Hα falls in the G141 wavelength coverage. The typical redshift error for galaxies is , i.e., one native WFC3 pixel. The limit for emission line fluxes of point sources is erg s−1 cm−2. All 2D and 1D spectra, as well as redshifts, line fluxes, and other derived parameters, are publicly available.

Subfields: Astronomy and Astrophysics, Electrical and Electronic Engineering, Instrumentation

View Paper: https://www.semanticscholar.org/paper/e6039aaa2cfcc8b2ccf9d6924406f5f3ca150aa5

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Citations in the corpus

The Complete CEERS Early Universe Galaxy Sample: A Surprisingly Slow Evolution of the Space Density of Bright Galaxies at z ∼ 8.5–14.5 (2023, methodology): “…Hubble Space Telescope ( HST ) imaging from the All-wavelength Extended Groth Strip International Survey ( AEGIS; Davis et al. 2007 ) , the Cosmic Assembly Deep Extragalactic Legacy Survey ( CANDELS; Grogin et al. 2011; Koekemoer et al. 2011 ) , and the 3D-HST ( Momcheva et al. 2016 ) survey.”
Great Optically Luminous Dropout Research Using Subaru HSC (GOLDRUSH). I. UV Luminosity Functions at $z \sim 4-7$ Derived with the Half-Million Dropouts on the 100 deg$^2$ Sky (2017, unknown): “…et al. 2012; Willott et al. 2013; Le Fèvre et al. 2013; Kashikawa et al. 2015; Kriek et al. 20154; Wang et al. 2016; Toshikawa et al. 2016; Momcheva et al. 2016; Matsuoka et al. 2016; Pâris et al. 2017; Tasca et al. 2017; Yang et al. 2017; Masters et al. 2017; Matsuoka et al. 2017;…”
The Wide Field Infrared Survey Telescope: 100 Hubbles for the 2020s (2019, methodology): “3-d HST (Momcheva et al. 2016) used 248 orbits (1400 ksec) to observe 626 arcmin2 with the G141 grism of WFC3 (and parallel G800L observations with ACS), achieving a typical 5σ line flux depth of ~ 5×10-17 erg s-1 cm-2 at 1.5µm.”
CEERS Key Paper. I. An Early Look into the First 500 Myr of Galaxy Formation with JWST (2022, methodology): “To check the accuracy of this calibration, we use a sample of objects with published spectroscopic redshifts in this field (compiled by N. Hathi 2022, private communication; including DEEP2, Newman et al. 2013; MOSDEF, Kriek et al. 2015; and 3D-HST, Momcheva et al. 2016, among others).”