A search for H2O maser emission in southern active galactic nuclei and star-forming galaxies: Discovery of a maser in the edge-on galaxy IRAS f01063 - 8034

L. J. Greenhill; S. P. Ellingsen; R. P. Norris; P. J. McGregor; R. G. Gough; M. W. Sinclair; D. P. Rayner; C. J. Phillips; J. R. Herrnstein; J. M. Moran

doi:10.1086/324383

A search for H₂O maser emission in southern active galactic nuclei and star-forming galaxies: Discovery of a maser in the edge-on galaxy IRAS f01063 - 8034

L. J. Greenhill^*, S. P. Ellingsen, R. P. Norris, P. J. McGregor, R. G. Gough, M. W. Sinclair, D. P. Rayner, C. J. Phillips, J. R. Herrnstein, J. M. Moran

^*Corresponding author for this work

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

23 Citations (Scopus)

Abstract

We report the cumulative results of five surveys for H₂O maser emission at 1.35 cm wavelength in 131 active galactic nuclei (AGNs) and star-forming galaxies, conducted at the Parkes Observatory between 1993 and 1998. We detected one new maser, in the edge-on galaxy IRAS F01063-8034, which exhibits a single ∼0.1 Jy spectral feature at 4282 ± 6 km s^-1 (heliocentric) with an unusually large 54 ± 16 km s^-1 half-power full width. The centroid velocity of the emission increased to 4319.6 ± 0.6 km s^-1 (38 ± 2 km s^-1 width) over the 13 days between discovery and confirmation of the detection. A similarly broad-line width and large change in velocity has been noted for the maser in NGC 1052, wherein jet activity excites the emission. Neither optical spectroscopy, radio-infrared correlations, nor infrared colors provide compelling evidence of unusual activity in the nucleus of IRAS F01063-8034. Since the galaxy appears to be outwardly normal at optical and infrared wavelengths, detection of an H₂O maser therein is unique. The maser emission is evidence that the galaxy harbors an AGN that is probably obscured by the edge-on galactic disk. The detection highlights the possibility that undetected AGNs could be hidden in other relatively nearby galaxies. No other maser emission features have been identified at velocities between 3084 and 6181 km s^-1.

Original language	English
Pages (from-to)	836-848
Number of pages	13
Journal	Astrophysical Journal
Volume	565
Issue number	2 I
DOIs	https://doi.org/10.1086/324383
Publication status	Published - 1 Feb 2002

Access to Document

10.1086/324383

Cite this

Greenhill, L. J., Ellingsen, S. P., Norris, R. P., McGregor, P. J., Gough, R. G., Sinclair, M. W., Rayner, D. P., Phillips, C. J., Herrnstein, J. R., & Moran, J. M. (2002). A search for H₂O maser emission in southern active galactic nuclei and star-forming galaxies: Discovery of a maser in the edge-on galaxy IRAS f01063 - 8034. Astrophysical Journal, 565(2 I), 836-848. https://doi.org/10.1086/324383

@article{aae6b5b72c9f4be7b64ef890b0fb0300,

title = "A search for H2O maser emission in southern active galactic nuclei and star-forming galaxies: Discovery of a maser in the edge-on galaxy IRAS f01063 - 8034",

abstract = "We report the cumulative results of five surveys for H2O maser emission at 1.35 cm wavelength in 131 active galactic nuclei (AGNs) and star-forming galaxies, conducted at the Parkes Observatory between 1993 and 1998. We detected one new maser, in the edge-on galaxy IRAS F01063-8034, which exhibits a single ∼0.1 Jy spectral feature at 4282 ± 6 km s-1 (heliocentric) with an unusually large 54 ± 16 km s-1 half-power full width. The centroid velocity of the emission increased to 4319.6 ± 0.6 km s-1 (38 ± 2 km s-1 width) over the 13 days between discovery and confirmation of the detection. A similarly broad-line width and large change in velocity has been noted for the maser in NGC 1052, wherein jet activity excites the emission. Neither optical spectroscopy, radio-infrared correlations, nor infrared colors provide compelling evidence of unusual activity in the nucleus of IRAS F01063-8034. Since the galaxy appears to be outwardly normal at optical and infrared wavelengths, detection of an H2O maser therein is unique. The maser emission is evidence that the galaxy harbors an AGN that is probably obscured by the edge-on galactic disk. The detection highlights the possibility that undetected AGNs could be hidden in other relatively nearby galaxies. No other maser emission features have been identified at velocities between 3084 and 6181 km s-1.",

keywords = "Galaxies: Seyfert ISM: molecules, Galaxies: active, Galaxies: individual (IRAS F01063-8034), Masers",

author = "Greenhill, {L. J.} and Ellingsen, {S. P.} and Norris, {R. P.} and McGregor, {P. J.} and Gough, {R. G.} and Sinclair, {M. W.} and Rayner, {D. P.} and Phillips, {C. J.} and Herrnstein, {J. R.} and Moran, {J. M.}",

year = "2002",

month = feb,

day = "1",

doi = "10.1086/324383",

language = "English",

volume = "565",

pages = "836--848",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2 I",

}

Greenhill, LJ, Ellingsen, SP, Norris, RP, McGregor, PJ, Gough, RG, Sinclair, MW, Rayner, DP, Phillips, CJ, Herrnstein, JR & Moran, JM 2002, 'A search for H₂O maser emission in southern active galactic nuclei and star-forming galaxies: Discovery of a maser in the edge-on galaxy IRAS f01063 - 8034', Astrophysical Journal, vol. 565, no. 2 I, pp. 836-848. https://doi.org/10.1086/324383

TY - JOUR

T1 - A search for H2O maser emission in southern active galactic nuclei and star-forming galaxies

T2 - Discovery of a maser in the edge-on galaxy IRAS f01063 - 8034

AU - Greenhill, L. J.

AU - Ellingsen, S. P.

AU - Norris, R. P.

AU - McGregor, P. J.

AU - Gough, R. G.

AU - Sinclair, M. W.

AU - Rayner, D. P.

AU - Phillips, C. J.

AU - Herrnstein, J. R.

AU - Moran, J. M.

PY - 2002/2/1

Y1 - 2002/2/1

N2 - We report the cumulative results of five surveys for H2O maser emission at 1.35 cm wavelength in 131 active galactic nuclei (AGNs) and star-forming galaxies, conducted at the Parkes Observatory between 1993 and 1998. We detected one new maser, in the edge-on galaxy IRAS F01063-8034, which exhibits a single ∼0.1 Jy spectral feature at 4282 ± 6 km s-1 (heliocentric) with an unusually large 54 ± 16 km s-1 half-power full width. The centroid velocity of the emission increased to 4319.6 ± 0.6 km s-1 (38 ± 2 km s-1 width) over the 13 days between discovery and confirmation of the detection. A similarly broad-line width and large change in velocity has been noted for the maser in NGC 1052, wherein jet activity excites the emission. Neither optical spectroscopy, radio-infrared correlations, nor infrared colors provide compelling evidence of unusual activity in the nucleus of IRAS F01063-8034. Since the galaxy appears to be outwardly normal at optical and infrared wavelengths, detection of an H2O maser therein is unique. The maser emission is evidence that the galaxy harbors an AGN that is probably obscured by the edge-on galactic disk. The detection highlights the possibility that undetected AGNs could be hidden in other relatively nearby galaxies. No other maser emission features have been identified at velocities between 3084 and 6181 km s-1.

AB - We report the cumulative results of five surveys for H2O maser emission at 1.35 cm wavelength in 131 active galactic nuclei (AGNs) and star-forming galaxies, conducted at the Parkes Observatory between 1993 and 1998. We detected one new maser, in the edge-on galaxy IRAS F01063-8034, which exhibits a single ∼0.1 Jy spectral feature at 4282 ± 6 km s-1 (heliocentric) with an unusually large 54 ± 16 km s-1 half-power full width. The centroid velocity of the emission increased to 4319.6 ± 0.6 km s-1 (38 ± 2 km s-1 width) over the 13 days between discovery and confirmation of the detection. A similarly broad-line width and large change in velocity has been noted for the maser in NGC 1052, wherein jet activity excites the emission. Neither optical spectroscopy, radio-infrared correlations, nor infrared colors provide compelling evidence of unusual activity in the nucleus of IRAS F01063-8034. Since the galaxy appears to be outwardly normal at optical and infrared wavelengths, detection of an H2O maser therein is unique. The maser emission is evidence that the galaxy harbors an AGN that is probably obscured by the edge-on galactic disk. The detection highlights the possibility that undetected AGNs could be hidden in other relatively nearby galaxies. No other maser emission features have been identified at velocities between 3084 and 6181 km s-1.

KW - Galaxies: Seyfert ISM: molecules

KW - Galaxies: active

KW - Galaxies: individual (IRAS F01063-8034)

KW - Masers

UR - http://www.scopus.com/inward/record.url?scp=0001622972&partnerID=8YFLogxK

U2 - 10.1086/324383

DO - 10.1086/324383

M3 - Article

SN - 0004-637X

VL - 565

SP - 836

EP - 848

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 I

ER -

A search for H₂O maser emission in southern active galactic nuclei and star-forming galaxies: Discovery of a maser in the edge-on galaxy IRAS f01063 - 8034

Abstract

Access to Document

Other files and links

Fingerprint

Cite this