Hipass detection of an intergalactic gas cloud in the NGC 2442 group

S.D. Ryder; B. Koribalski; Lister Staveley-Smith; V.A. Kilborn; D.F. Malin; G.D. Banks; D.G. Barnes; R. Bhatal; W.J.G. De Blok; P.J. Boyce; M.J. Disney; M.J. Drinkwater; R.D. Ekers; K.C. Freeman; B.K. Gibson; P.A. Henning; H. Jerjen; P.M. Knezek; M. Marquarding; R.F. Minchin; J.R. Mould; T. Oosterloo; R.M. Price; M.E. Putman; E.M. Sadler; I. Stewart; F. Stootman; R.L. Webster; A.E. Wright

doi:10.1086/321453

Hipass detection of an intergalactic gas cloud in the NGC 2442 group

S.D. Ryder, B. Koribalski, Lister Staveley-Smith, V.A. Kilborn, D.F. Malin, G.D. Banks, D.G. Barnes, R. Bhatal, W.J.G. De Blok, P.J. Boyce, M.J. Disney, M.J. Drinkwater, R.D. Ekers, K.C. Freeman, B.K. Gibson, P.A. Henning, H. Jerjen, P.M. Knezek, M. Marquarding, R.F. MinchinJ.R. Mould, T. Oosterloo, R.M. Price, M.E. Putman, E.M. Sadler, I. Stewart, F. Stootman, R.L. Webster, A.E. Wright

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

58 Citations (Web of Science)

Abstract

We report the discovery from the H I Parkes All-Sky Survey (HIPASS) of a gas cloud associated with the asymmetric spiral galaxy NGC 2442. This object, designated HIPASS J0731-69, contains similar to 10(9) M-. of H I, or nearly one-third as much atomic gas as NGC 2442 itself. No optical counterpart to any part of HIPASS J0731-69 has yet been identified, consistent with the gas being diffuse and its streamlike kinematics. If the gas in HIPASS J0731-69 was once part of NGC 2442, then it was most likely a fairly recent tidal encounter with a moderately massive companion that tore it loose, although the possibility of ram-pressure stripping cannot be ruled out. This discovery highlights the potential of the HIPASS data for yielding new clues to the nature of some of the best-known galaxies in the local universe.

Original language	English
Pages (from-to)	232-239
Journal	The Astrophysical Journal
Volume	555
Issue number	1
DOIs	https://doi.org/10.1086/321453
Publication status	Published - 2001

Access to Document

10.1086/321453

Cite this

Ryder, S. D., Koribalski, B., Staveley-Smith, L., Kilborn, V. A., Malin, D. F., Banks, G. D., Barnes, D. G., Bhatal, R., De Blok, W. J. G., Boyce, P. J., Disney, M. J., Drinkwater, M. J., Ekers, R. D., Freeman, K. C., Gibson, B. K., Henning, P. A., Jerjen, H., Knezek, P. M., Marquarding, M., ... Wright, A. E. (2001). Hipass detection of an intergalactic gas cloud in the NGC 2442 group. The Astrophysical Journal, 555(1), 232-239. https://doi.org/10.1086/321453

@article{3dd8efd9ca924bd7ae063d2629db9a08,

title = "Hipass detection of an intergalactic gas cloud in the NGC 2442 group",

abstract = "We report the discovery from the H I Parkes All-Sky Survey (HIPASS) of a gas cloud associated with the asymmetric spiral galaxy NGC 2442. This object, designated HIPASS J0731-69, contains similar to 10(9) M-. of H I, or nearly one-third as much atomic gas as NGC 2442 itself. No optical counterpart to any part of HIPASS J0731-69 has yet been identified, consistent with the gas being diffuse and its streamlike kinematics. If the gas in HIPASS J0731-69 was once part of NGC 2442, then it was most likely a fairly recent tidal encounter with a moderately massive companion that tore it loose, although the possibility of ram-pressure stripping cannot be ruled out. This discovery highlights the potential of the HIPASS data for yielding new clues to the nature of some of the best-known galaxies in the local universe.",

author = "S.D. Ryder and B. Koribalski and Lister Staveley-Smith and V.A. Kilborn and D.F. Malin and G.D. Banks and D.G. Barnes and R. Bhatal and {De Blok}, W.J.G. and P.J. Boyce and M.J. Disney and M.J. Drinkwater and R.D. Ekers and K.C. Freeman and B.K. Gibson and P.A. Henning and H. Jerjen and P.M. Knezek and M. Marquarding and R.F. Minchin and J.R. Mould and T. Oosterloo and R.M. Price and M.E. Putman and E.M. Sadler and I. Stewart and F. Stootman and R.L. Webster and A.E. Wright",

year = "2001",

doi = "10.1086/321453",

language = "English",

volume = "555",

pages = "232--239",

journal = "The Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing",

number = "1",

}

Ryder, SD, Koribalski, B, Staveley-Smith, L, Kilborn, VA, Malin, DF, Banks, GD, Barnes, DG, Bhatal, R, De Blok, WJG, Boyce, PJ, Disney, MJ, Drinkwater, MJ, Ekers, RD, Freeman, KC, Gibson, BK, Henning, PA, Jerjen, H, Knezek, PM, Marquarding, M, Minchin, RF, Mould, JR, Oosterloo, T, Price, RM, Putman, ME, Sadler, EM, Stewart, I, Stootman, F, Webster, RL & Wright, AE 2001, 'Hipass detection of an intergalactic gas cloud in the NGC 2442 group', The Astrophysical Journal, vol. 555, no. 1, pp. 232-239. https://doi.org/10.1086/321453

TY - JOUR

T1 - Hipass detection of an intergalactic gas cloud in the NGC 2442 group

AU - Ryder, S.D.

AU - Koribalski, B.

AU - Staveley-Smith, Lister

AU - Kilborn, V.A.

AU - Malin, D.F.

AU - Banks, G.D.

AU - Barnes, D.G.

AU - Bhatal, R.

AU - De Blok, W.J.G.

AU - Boyce, P.J.

AU - Disney, M.J.

AU - Drinkwater, M.J.

AU - Ekers, R.D.

AU - Freeman, K.C.

AU - Gibson, B.K.

AU - Henning, P.A.

AU - Jerjen, H.

AU - Knezek, P.M.

AU - Marquarding, M.

AU - Minchin, R.F.

AU - Mould, J.R.

AU - Oosterloo, T.

AU - Price, R.M.

AU - Putman, M.E.

AU - Sadler, E.M.

AU - Stewart, I.

AU - Stootman, F.

AU - Webster, R.L.

AU - Wright, A.E.

PY - 2001

Y1 - 2001

N2 - We report the discovery from the H I Parkes All-Sky Survey (HIPASS) of a gas cloud associated with the asymmetric spiral galaxy NGC 2442. This object, designated HIPASS J0731-69, contains similar to 10(9) M-. of H I, or nearly one-third as much atomic gas as NGC 2442 itself. No optical counterpart to any part of HIPASS J0731-69 has yet been identified, consistent with the gas being diffuse and its streamlike kinematics. If the gas in HIPASS J0731-69 was once part of NGC 2442, then it was most likely a fairly recent tidal encounter with a moderately massive companion that tore it loose, although the possibility of ram-pressure stripping cannot be ruled out. This discovery highlights the potential of the HIPASS data for yielding new clues to the nature of some of the best-known galaxies in the local universe.

AB - We report the discovery from the H I Parkes All-Sky Survey (HIPASS) of a gas cloud associated with the asymmetric spiral galaxy NGC 2442. This object, designated HIPASS J0731-69, contains similar to 10(9) M-. of H I, or nearly one-third as much atomic gas as NGC 2442 itself. No optical counterpart to any part of HIPASS J0731-69 has yet been identified, consistent with the gas being diffuse and its streamlike kinematics. If the gas in HIPASS J0731-69 was once part of NGC 2442, then it was most likely a fairly recent tidal encounter with a moderately massive companion that tore it loose, although the possibility of ram-pressure stripping cannot be ruled out. This discovery highlights the potential of the HIPASS data for yielding new clues to the nature of some of the best-known galaxies in the local universe.

U2 - 10.1086/321453

DO - 10.1086/321453

M3 - Article

SN - 0004-637X

VL - 555

SP - 232

EP - 239

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 1

ER -

Hipass detection of an intergalactic gas cloud in the NGC 2442 group

Abstract

Access to Document

Fingerprint

Cite this