Near-infrared observations of the Z about 2.3 IRAS source FSC 10214 + 4724

B. T. Soifer; G. Neugebauer; J. R. Graham; K. Matthews; J. M. Mazzarella; C. J. Lonsdale; M. Rowan-Robinson; T. Broadhurst; A. Lawrence; R. McMahon

doi:10.1086/186195

Near-infrared observations of the Z about 2.3 IRAS source FSC 10214 + 4724

B. T. Soifer, G. Neugebauer, J. R. Graham, K. Matthews, J. M. Mazzarella, C. J. Lonsdale, M. Rowan-Robinson, T. Broadhurst, A. Lawrence, R. McMahon

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Near-infrared imaging and spectroscopy of the extremely luminous IRAS source FSC 10214 + 4724 have been obtained using the Cassegrain infrared camera on the 200-inch Hale Telescope. A low-resolution spectrum in the 2.0-2.4 micron atmospheric window shows a very strong H-alpha line at the optically determined redshift z = 2.286. The observed rest-frame equivalent width of H-alpha is 0.07 +/-0.02 microns, consistent with the largest values found in quasars. The images show an unresolved source, while the near-infrared colors are somewhat redder than the mean colors of quasars observed at the same redshift. The reddening inferred is about 1.5 mag, with an upper limit of about 3.0 mag. If FSC 10214 + 4724 is a quasar, the reddening-corrected bolometric luminosity is approximately equal to the observed infrared luminosity.

Original language	English
Journal	Astrophysical Journal
Volume	381
DOIs	https://doi.org/10.1086/186195
Publication status	Published - 1 Nov 1991

Keywords / Materials (for Non-textual outputs)

Infrared Sources (Astronomy)
Near Infrared Radiation
Cassegrain Optics
Cosmic Dust
Infrared Astronomy Satellite
Quasars
Red Shift

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10.1086/186195

http://adsabs.harvard.edu/abs/1991ApJ...381L..55S

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@article{c9f6bc66f32b4365b072b53b319ac1f3,

title = "Near-infrared observations of the Z about 2.3 IRAS source FSC 10214 + 4724",

abstract = "Near-infrared imaging and spectroscopy of the extremely luminous IRAS source FSC 10214 + 4724 have been obtained using the Cassegrain infrared camera on the 200-inch Hale Telescope. A low-resolution spectrum in the 2.0-2.4 micron atmospheric window shows a very strong H-alpha line at the optically determined redshift z = 2.286. The observed rest-frame equivalent width of H-alpha is 0.07 +/-0.02 microns, consistent with the largest values found in quasars. The images show an unresolved source, while the near-infrared colors are somewhat redder than the mean colors of quasars observed at the same redshift. The reddening inferred is about 1.5 mag, with an upper limit of about 3.0 mag. If FSC 10214 + 4724 is a quasar, the reddening-corrected bolometric luminosity is approximately equal to the observed infrared luminosity.",

keywords = "Infrared Sources (Astronomy), Near Infrared Radiation, Cassegrain Optics, Cosmic Dust, Infrared Astronomy Satellite, Quasars, Red Shift",

author = "Soifer, {B. T.} and G. Neugebauer and Graham, {J. R.} and K. Matthews and Mazzarella, {J. M.} and Lonsdale, {C. J.} and M. Rowan-Robinson and T. Broadhurst and A. Lawrence and R. McMahon",

year = "1991",

month = nov,

day = "1",

doi = "10.1086/186195",

language = "English",

volume = "381",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing",

}

TY - JOUR

T1 - Near-infrared observations of the Z about 2.3 IRAS source FSC 10214 + 4724

AU - Soifer, B. T.

AU - Neugebauer, G.

AU - Graham, J. R.

AU - Matthews, K.

AU - Mazzarella, J. M.

AU - Lonsdale, C. J.

AU - Rowan-Robinson, M.

AU - Broadhurst, T.

AU - Lawrence, A.

AU - McMahon, R.

PY - 1991/11/1

Y1 - 1991/11/1

N2 - Near-infrared imaging and spectroscopy of the extremely luminous IRAS source FSC 10214 + 4724 have been obtained using the Cassegrain infrared camera on the 200-inch Hale Telescope. A low-resolution spectrum in the 2.0-2.4 micron atmospheric window shows a very strong H-alpha line at the optically determined redshift z = 2.286. The observed rest-frame equivalent width of H-alpha is 0.07 +/-0.02 microns, consistent with the largest values found in quasars. The images show an unresolved source, while the near-infrared colors are somewhat redder than the mean colors of quasars observed at the same redshift. The reddening inferred is about 1.5 mag, with an upper limit of about 3.0 mag. If FSC 10214 + 4724 is a quasar, the reddening-corrected bolometric luminosity is approximately equal to the observed infrared luminosity.

AB - Near-infrared imaging and spectroscopy of the extremely luminous IRAS source FSC 10214 + 4724 have been obtained using the Cassegrain infrared camera on the 200-inch Hale Telescope. A low-resolution spectrum in the 2.0-2.4 micron atmospheric window shows a very strong H-alpha line at the optically determined redshift z = 2.286. The observed rest-frame equivalent width of H-alpha is 0.07 +/-0.02 microns, consistent with the largest values found in quasars. The images show an unresolved source, while the near-infrared colors are somewhat redder than the mean colors of quasars observed at the same redshift. The reddening inferred is about 1.5 mag, with an upper limit of about 3.0 mag. If FSC 10214 + 4724 is a quasar, the reddening-corrected bolometric luminosity is approximately equal to the observed infrared luminosity.

KW - Infrared Sources (Astronomy)

KW - Near Infrared Radiation

KW - Cassegrain Optics

KW - Cosmic Dust

KW - Infrared Astronomy Satellite

KW - Quasars

KW - Red Shift

U2 - 10.1086/186195

DO - 10.1086/186195

M3 - Article

SN - 0004-637X

VL - 381

JO - Astrophysical Journal

JF - Astrophysical Journal

ER -

Near-infrared observations of the Z about 2.3 IRAS source FSC 10214 + 4724

Abstract

Keywords / Materials (for Non-textual outputs)

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