An extraordinary scattered broad emission line in a type 2 quasi-stellar object

Gary D. Schmidt; Paul S. Smith; Craig B. Foltz; Dean C. Hines

doi:10.1086/344702

An extraordinary scattered broad emission line in a type 2 quasi-stellar object

Gary D. Schmidt, Paul S. Smith, Craig B. Foltz, Dean C. Hines

Steward Observatory

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

14 Scopus citations

Abstract

An infrared-selected, narrow-line quasi-stellar object has been found to exhibit an extraordinarily broad Hα emission line in polarized light. Both the extreme width (35,000 km s^-1 full-width at zero intensity) and 3,000 km s^-1 redshift of the line centroid with respect to the systemic velocity suggest emission in a deep gravitational potential. An extremely red polarized continuum and partial scattering of the narrow lines at a position angle common to the broad-line emission imply extensive obscuration, with few unimpeded lines of sight to the nucleus.

Original language	English (US)
Pages (from-to)	L99-L102
Journal	Astrophysical Journal
Volume	578
Issue number	2 II
DOIs	https://doi.org/10.1086/344702
State	Published - Oct 20 2002

Keywords

Galaxies: active
Polarization
Quasars: emission lines

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1086/344702

Cite this

@article{a5a08225bc984cf5841d0a74d005fba0,

title = "An extraordinary scattered broad emission line in a type 2 quasi-stellar object",

abstract = "An infrared-selected, narrow-line quasi-stellar object has been found to exhibit an extraordinarily broad Hα emission line in polarized light. Both the extreme width (35,000 km s-1 full-width at zero intensity) and 3,000 km s-1 redshift of the line centroid with respect to the systemic velocity suggest emission in a deep gravitational potential. An extremely red polarized continuum and partial scattering of the narrow lines at a position angle common to the broad-line emission imply extensive obscuration, with few unimpeded lines of sight to the nucleus.",

keywords = "Galaxies: active, Polarization, Quasars: emission lines",

author = "Schmidt, {Gary D.} and Smith, {Paul S.} and Foltz, {Craig B.} and Hines, {Dean C.}",

note = "Funding Information: We are grateful to A. Marble for assistance with the observations, to J. McAfee for skillful operation of the new MMT, and to the referee A. Laor. This research was supported by SIRTF/MIPS and Science Working Group contracts 860785 and 959969 and NSF grants 97-30792 and 98-03072.",

year = "2002",

month = oct,

day = "20",

doi = "10.1086/344702",

language = "English (US)",

volume = "578",

pages = "L99--L102",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2 II",

}

TY - JOUR

T1 - An extraordinary scattered broad emission line in a type 2 quasi-stellar object

AU - Schmidt, Gary D.

AU - Smith, Paul S.

AU - Foltz, Craig B.

AU - Hines, Dean C.

N1 - Funding Information: We are grateful to A. Marble for assistance with the observations, to J. McAfee for skillful operation of the new MMT, and to the referee A. Laor. This research was supported by SIRTF/MIPS and Science Working Group contracts 860785 and 959969 and NSF grants 97-30792 and 98-03072.

PY - 2002/10/20

Y1 - 2002/10/20

N2 - An infrared-selected, narrow-line quasi-stellar object has been found to exhibit an extraordinarily broad Hα emission line in polarized light. Both the extreme width (35,000 km s-1 full-width at zero intensity) and 3,000 km s-1 redshift of the line centroid with respect to the systemic velocity suggest emission in a deep gravitational potential. An extremely red polarized continuum and partial scattering of the narrow lines at a position angle common to the broad-line emission imply extensive obscuration, with few unimpeded lines of sight to the nucleus.

AB - An infrared-selected, narrow-line quasi-stellar object has been found to exhibit an extraordinarily broad Hα emission line in polarized light. Both the extreme width (35,000 km s-1 full-width at zero intensity) and 3,000 km s-1 redshift of the line centroid with respect to the systemic velocity suggest emission in a deep gravitational potential. An extremely red polarized continuum and partial scattering of the narrow lines at a position angle common to the broad-line emission imply extensive obscuration, with few unimpeded lines of sight to the nucleus.

KW - Galaxies: active

KW - Polarization

KW - Quasars: emission lines

UR - http://www.scopus.com/inward/record.url?scp=0042232248&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0042232248&partnerID=8YFLogxK

U2 - 10.1086/344702

DO - 10.1086/344702

M3 - Article

AN - SCOPUS:0042232248

SN - 0004-637X

VL - 578

SP - L99-L102

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 II

ER -

An extraordinary scattered broad emission line in a type 2 quasi-stellar object

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this