Star Formation in Galaxies between 0.7 < z < 1.8

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dc.creatorHopkins, A. M.
dc.creatorConnolly, A. J.
dc.creatorSzalay, A. S.
dc.date2000-09-05
dc.date2000-09-05
dc.date.accessioned2026-07-07T01:55:19Z
dc.date.available2026-07-07T01:55:19Z
dc.descriptionWe present an analysis of the star formation rate in galaxies between 0.7<z<1.8 using Near Infrared Camera and Multi-Object Spectrograph (NICMOS) grism spectral observations. We detect 163 galaxies in an area of ~4.4 square arcminutes, 37 of which show possible H-alpha emission. We extend the observed H-alpha luminosity function (LF) in this redshift range to luminosities a factor of two fainter than earlier work, and are consistent in the region of overlap. Using the H-alpha LF, we estimate a star formation rate (SFR) density in this redshift range of 0.166 M_sun/yr/Mpc^3 (H0=75 km/s/Mpc), consistent with other estimates based on emission lines, and supporting the order of magnitude increase in SFR density between z=0 and z=1. Our measurement of SFR density is a factor of ~2-3 greater than that estimated from UV data, comparable to the factor observed locally, implying little evolution in the relative extinctions between UV and H-alpha out to z~1.3.
dc.description11 pages, 6 figures, accepted by AJ (to appear Dec. 2000)
dc.identifierhttps://arxiv.org/abs/astro-ph/0009073
dc.identifierhttp://arxiv.org/abs/astro-ph/0009073
dc.identifier2000AJ....120.2843H
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/1616
dc.subjectAstrophysics
dc.titleStar Formation in Galaxies between 0.7 < z < 1.8
dc.typetext

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