OH and H I absorption at the nucleus of NGC 660

Willem A. Baan, James Rhoads, Aubrey D. Haschick

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

High-resolution interferometric data of the H I and OH absorption in the nuclear region of NGC 660 reveal three distinct absorbing structures. The central disk of the galaxy with a large velocity gradient dominates the absorption signature. The gas in the warped outer disk appears in absorption close to the systemic velocity; the outer rings of the warp located at large radii are moving in front of the nuclear radio source. Third, an outflowing feature can be seen at the center of the radio source at 100 km s-1 below the systemic velocity. This mostly molecular feature could be due to a perturbed spiral structure in the inner regions of the disk.

Original languageEnglish (US)
Pages (from-to)508-515
Number of pages8
JournalAstrophysical Journal
Volume401
Issue number2
StatePublished - Dec 20 1992
Externally publishedYes

Fingerprint

nuclei
radio
signatures
galaxies
gradients
radii
rings
high resolution
gases
gas

Keywords

  • Galaxies: individual (NGC 660)
  • Galaxies: interstellar matter
  • Galaxies: nuclei
  • Molecular data

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Baan, W. A., Rhoads, J., & Haschick, A. D. (1992). OH and H I absorption at the nucleus of NGC 660. Astrophysical Journal, 401(2), 508-515.

OH and H I absorption at the nucleus of NGC 660. / Baan, Willem A.; Rhoads, James; Haschick, Aubrey D.

In: Astrophysical Journal, Vol. 401, No. 2, 20.12.1992, p. 508-515.

Research output: Contribution to journalArticle

Baan, WA, Rhoads, J & Haschick, AD 1992, 'OH and H I absorption at the nucleus of NGC 660', Astrophysical Journal, vol. 401, no. 2, pp. 508-515.
Baan WA, Rhoads J, Haschick AD. OH and H I absorption at the nucleus of NGC 660. Astrophysical Journal. 1992 Dec 20;401(2):508-515.
Baan, Willem A. ; Rhoads, James ; Haschick, Aubrey D. / OH and H I absorption at the nucleus of NGC 660. In: Astrophysical Journal. 1992 ; Vol. 401, No. 2. pp. 508-515.
@article{1d0ea12332164b99bf75e16923190943,
title = "OH and H I absorption at the nucleus of NGC 660",
abstract = "High-resolution interferometric data of the H I and OH absorption in the nuclear region of NGC 660 reveal three distinct absorbing structures. The central disk of the galaxy with a large velocity gradient dominates the absorption signature. The gas in the warped outer disk appears in absorption close to the systemic velocity; the outer rings of the warp located at large radii are moving in front of the nuclear radio source. Third, an outflowing feature can be seen at the center of the radio source at 100 km s-1 below the systemic velocity. This mostly molecular feature could be due to a perturbed spiral structure in the inner regions of the disk.",
keywords = "Galaxies: individual (NGC 660), Galaxies: interstellar matter, Galaxies: nuclei, Molecular data",
author = "Baan, {Willem A.} and James Rhoads and Haschick, {Aubrey D.}",
year = "1992",
month = "12",
day = "20",
language = "English (US)",
volume = "401",
pages = "508--515",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2",

}

TY - JOUR

T1 - OH and H I absorption at the nucleus of NGC 660

AU - Baan, Willem A.

AU - Rhoads, James

AU - Haschick, Aubrey D.

PY - 1992/12/20

Y1 - 1992/12/20

N2 - High-resolution interferometric data of the H I and OH absorption in the nuclear region of NGC 660 reveal three distinct absorbing structures. The central disk of the galaxy with a large velocity gradient dominates the absorption signature. The gas in the warped outer disk appears in absorption close to the systemic velocity; the outer rings of the warp located at large radii are moving in front of the nuclear radio source. Third, an outflowing feature can be seen at the center of the radio source at 100 km s-1 below the systemic velocity. This mostly molecular feature could be due to a perturbed spiral structure in the inner regions of the disk.

AB - High-resolution interferometric data of the H I and OH absorption in the nuclear region of NGC 660 reveal three distinct absorbing structures. The central disk of the galaxy with a large velocity gradient dominates the absorption signature. The gas in the warped outer disk appears in absorption close to the systemic velocity; the outer rings of the warp located at large radii are moving in front of the nuclear radio source. Third, an outflowing feature can be seen at the center of the radio source at 100 km s-1 below the systemic velocity. This mostly molecular feature could be due to a perturbed spiral structure in the inner regions of the disk.

KW - Galaxies: individual (NGC 660)

KW - Galaxies: interstellar matter

KW - Galaxies: nuclei

KW - Molecular data

UR - http://www.scopus.com/inward/record.url?scp=11944260895&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=11944260895&partnerID=8YFLogxK

M3 - Article

VL - 401

SP - 508

EP - 515

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

ER -