2021ApJ...923..217G

Query : 2021ApJ...923..217G

2021ApJ...923..217G - Astrophys. J., 923, 217-217 (2021/December-3)

The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) survey design, reductions, and detections.

GEBHARDT K., MENTUCH COOPER E., CIARDULLO R., ACQUAVIVA V., BENDER R., BOWMAN W.P., CASTANHEIRA B.G., DALTON G., DAVIS D., DE JONG R.S., DEPOY D.L., DEVARAKONDA Y., DONGSHENG S., DRORY N., FABRICIUS M., FARROW D.J., FELDMEIER J., FINKELSTEIN S.L., FRONING C.S., GAWISER E., GRONWALL C., HEROLD L., HILL G.J., HOPP U., HOUSE L.R., JANOWIECKI S., JARVIS M., JEONG D., JOGEE S., KAKUMA R., KELZ A., KOLLATSCHNY W., KOMATSU E., KRUMPE M., LANDRIAU M., LIU C., NIEMEYER M.L., MacQUEEN P., MARSHALL J., MAWATARI K., McLINDEN E.M., MUKAE S., NAGARAJ G., ONO Y., OUCHI M., PAPOVICH C., SAKAI N., SAITO S., SCHNEIDER D.P., SCHULZE A., SHANMUGASUNDARARAJ K., SHETRONE M., SNEDEN C., SNIGULA J., STEINMETZ M., THOMAS B.P., THOMAS B., TUTTLE S., URRUTIA T., WISOTZKI L., WOLD I., ZEIMANN G. and ZHANG Y.

Abstract (from CDS):

We describe the survey design, calibration, commissioning, and emission-line detection algorithms for the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). The goal of HETDEX is to measure the redshifts of over a million Lyα emitting galaxies between 1.88 < z < 3.52, in a 540 deg2 area encompassing a comoving volume of 10.9 Gpc3. No preselection of targets is involved; instead the HETDEX measurements are accomplished via a spectroscopic survey using a suite of wide-field integral field units distributed over the focal plane of the telescope. This survey measures the Hubble expansion parameter and angular diameter distance, with a final expected accuracy of better than 1%. We detail the project's observational strategy, reduction pipeline, source detection, and catalog generation, and present initial results for science verification in the Cosmological Evolution Survey, Extended Groth Strip, and Great Observatories Origins Deep Survey North fields. We demonstrate that our data reach the required specifications in throughput, astrometric accuracy, flux limit, and object detection, with the end products being a catalog of emission-line sources, their object classifications, and flux-calibrated spectra.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Dark energy

Simbad objects: 7

goto Full paper

goto View the references in ADS

Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 EGGR 344 WD* 07 53 27.2601412872 +52 29 31.468181352 15.367 15.93 15.674 15.511 15.350 DC 57 0
2 NAME GOODS-N Field reg 12 36 55.0 +62 14 15           ~ 1364 1
3 * zet UMa ** 13 23 55.54048 +54 55 31.2671           ~ 93 0
4 * g UMa ** 13 25 13.5378333 +54 59 16.654781 4.260 4.180 4.010 3.85 3.78 A5V+M3-4V 318 0
5 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
6 NAME Extended Groth Strip reg 14 19 +52.8           ~ 1023 0
7 GD 193 WD* 15 52 00.9359166312 +19 57 53.148223260   16.26   16.1   DC 19 0

To bookmark this query, right click on this link: simbad:objects in 2021ApJ...923..217G and select 'bookmark this link' or equivalent in the popup menu