A dark galaxy in the virgo cluster imaged at 21-cm

R. F. Minchin; M. J. Disney; J. I. Davies; A. R. Marble; C. D. Impey; P. J. Boyce; D. A. Garcia; M. Grossi; C. A. Jordan; R. H. Lang; S. Roberts; S. Sabatini; W. Van Driel

doi:10.1007/978-1-4020-5573-7_15

A dark galaxy in the virgo cluster imaged at 21-cm

R. F. Minchin
, M. J. Disney
, J. I. Davies
, A. R. Marble
, C. D. Impey
, P. J. Boyce
, D. A. Garcia
, M. Grossi
, C. A. Jordan
, R. H. Lang
, S. Roberts
, S. Sabatini
, W. Van Driel

Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Dark Matter supposedly dominates the extragalactic Universe (Peebles 1993; Peacock 1998; Moore et al. 1999; D’Onghi & Lake 2004), yet no dark structure of galactic proportions has ever been convincingly identified. Earlier (Minchin et al. 2005) we suggested that VIRGOHI 21, a 21-cm source we found in the Virgo Cluster at Jodrell Bank using single-dish observations (Davies et al. 2004), was probably such a dark galaxy because of its broad line-width (∼200 km s⁻¹) unaccompanied by any visible gravitational source to account for it. We have now imaged VIRGOHI 21 in the neutral-hydrogen line, and have found what appears to be a dark, edge-on, spinning disc with the mass and diameter of a typical spiral galaxy. Moreover the disc has unquestionably interacted with NGC 4254, a luminous spiral with an odd one-armed morphology, but lacking the massive interactor normally linked with such a feature. Published numerical models (Vollmer et al. 2005) of NGC 4254 call for a close interaction ∼10⁸ years ago with a perturber of ∼10¹¹ solar masses. This we take as further, independent evidence for the massive nature of VIRGOHI 21.

Original language	English (US)
Title of host publication	Astrophysics and Space Science Proceedings
Editors	R.S. De Jong
Publisher	Springer Science and Business Media B.V.
Pages	101-106
Number of pages	6
ISBN (Electronic)	9781402055737
ISBN (Print)	9780387727677, 9780387876207, 9781402055720, 9781402055720, 9781402069321, 9781402088674, 9781402091896, 9781441981608, 9781441983688, 9783540758259, 9783642033230, 9783642103216, 9783642103513, 9783642113406, 9783642172502, 9789048133994, 9789048134984
DOIs	https://doi.org/10.1007/978-1-4020-5573-7_15
State	Published - 2007
Event	International Conference on Island Universe: Structure and Evolution of Disk Galaxies, 2005 - Terschelling, Netherlands Duration: Jul 3 2005 → Jul 5 2005

Publication series

Name	Astrophysics and Space Science Proceedings
Volume	0
ISSN (Print)	1570-6591
ISSN (Electronic)	1570-6605

Conference

Conference	International Conference on Island Universe: Structure and Evolution of Disk Galaxies, 2005
Country/Territory	Netherlands
City	Terschelling
Period	7/3/05 → 7/5/05

Keywords

Dark matter
Galaxies: Intergalactic medium
Galaxies: Peculiar

ASJC Scopus subject areas

Nuclear and High Energy Physics
General Physics and Astronomy
Spectroscopy
Computer Science Applications
Space and Planetary Science

Access to Document

10.1007/978-1-4020-5573-7_15

Cite this

Minchin, R. F., Disney, M. J., Davies, J. I., Marble, A. R., Impey, C. D., Boyce, P. J., Garcia, D. A., Grossi, M., Jordan, C. A., Lang, R. H., Roberts, S., Sabatini, S., & Van Driel, W. (2007). A dark galaxy in the virgo cluster imaged at 21-cm. In R. S. De Jong (Ed.), Astrophysics and Space Science Proceedings (pp. 101-106). (Astrophysics and Space Science Proceedings; Vol. 0). Springer Science and Business Media B.V.. https://doi.org/10.1007/978-1-4020-5573-7_15

A dark galaxy in the virgo cluster imaged at 21-cm. / Minchin, R. F.; Disney, M. J.; Davies, J. I. et al.
Astrophysics and Space Science Proceedings. ed. / R.S. De Jong. Springer Science and Business Media B.V., 2007. p. 101-106 (Astrophysics and Space Science Proceedings; Vol. 0).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Minchin, RF, Disney, MJ, Davies, JI, Marble, AR, Impey, CD, Boyce, PJ, Garcia, DA, Grossi, M, Jordan, CA, Lang, RH, Roberts, S, Sabatini, S & Van Driel, W 2007, A dark galaxy in the virgo cluster imaged at 21-cm. in RS De Jong (ed.), Astrophysics and Space Science Proceedings. Astrophysics and Space Science Proceedings, vol. 0, Springer Science and Business Media B.V., pp. 101-106, International Conference on Island Universe: Structure and Evolution of Disk Galaxies, 2005, Terschelling, Netherlands, 7/3/05. https://doi.org/10.1007/978-1-4020-5573-7_15

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title = "A dark galaxy in the virgo cluster imaged at 21-cm",

abstract = "Dark Matter supposedly dominates the extragalactic Universe (Peebles 1993; Peacock 1998; Moore et al. 1999; D{\textquoteright}Onghi \& Lake 2004), yet no dark structure of galactic proportions has ever been convincingly identified. Earlier (Minchin et al. 2005) we suggested that VIRGOHI 21, a 21-cm source we found in the Virgo Cluster at Jodrell Bank using single-dish observations (Davies et al. 2004), was probably such a dark galaxy because of its broad line-width (∼200 km s−1) unaccompanied by any visible gravitational source to account for it. We have now imaged VIRGOHI 21 in the neutral-hydrogen line, and have found what appears to be a dark, edge-on, spinning disc with the mass and diameter of a typical spiral galaxy. Moreover the disc has unquestionably interacted with NGC 4254, a luminous spiral with an odd one-armed morphology, but lacking the massive interactor normally linked with such a feature. Published numerical models (Vollmer et al. 2005) of NGC 4254 call for a close interaction ∼108 years ago with a perturber of ∼1011 solar masses. This we take as further, independent evidence for the massive nature of VIRGOHI 21.",

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author = "Minchin, \{R. F.\} and Disney, \{M. J.\} and Davies, \{J. I.\} and Marble, \{A. R.\} and Impey, \{C. D.\} and Boyce, \{P. J.\} and Garcia, \{D. A.\} and M. Grossi and Jordan, \{C. A.\} and Lang, \{R. H.\} and S. Roberts and S. Sabatini and \{Van Driel\}, W.",

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AU - Minchin, R. F.

AU - Disney, M. J.

AU - Davies, J. I.

AU - Marble, A. R.

AU - Impey, C. D.

AU - Boyce, P. J.

AU - Garcia, D. A.

AU - Grossi, M.

AU - Jordan, C. A.

AU - Lang, R. H.

AU - Roberts, S.

AU - Sabatini, S.

AU - Van Driel, W.

PY - 2007

Y1 - 2007

N2 - Dark Matter supposedly dominates the extragalactic Universe (Peebles 1993; Peacock 1998; Moore et al. 1999; D’Onghi & Lake 2004), yet no dark structure of galactic proportions has ever been convincingly identified. Earlier (Minchin et al. 2005) we suggested that VIRGOHI 21, a 21-cm source we found in the Virgo Cluster at Jodrell Bank using single-dish observations (Davies et al. 2004), was probably such a dark galaxy because of its broad line-width (∼200 km s−1) unaccompanied by any visible gravitational source to account for it. We have now imaged VIRGOHI 21 in the neutral-hydrogen line, and have found what appears to be a dark, edge-on, spinning disc with the mass and diameter of a typical spiral galaxy. Moreover the disc has unquestionably interacted with NGC 4254, a luminous spiral with an odd one-armed morphology, but lacking the massive interactor normally linked with such a feature. Published numerical models (Vollmer et al. 2005) of NGC 4254 call for a close interaction ∼108 years ago with a perturber of ∼1011 solar masses. This we take as further, independent evidence for the massive nature of VIRGOHI 21.

AB - Dark Matter supposedly dominates the extragalactic Universe (Peebles 1993; Peacock 1998; Moore et al. 1999; D’Onghi & Lake 2004), yet no dark structure of galactic proportions has ever been convincingly identified. Earlier (Minchin et al. 2005) we suggested that VIRGOHI 21, a 21-cm source we found in the Virgo Cluster at Jodrell Bank using single-dish observations (Davies et al. 2004), was probably such a dark galaxy because of its broad line-width (∼200 km s−1) unaccompanied by any visible gravitational source to account for it. We have now imaged VIRGOHI 21 in the neutral-hydrogen line, and have found what appears to be a dark, edge-on, spinning disc with the mass and diameter of a typical spiral galaxy. Moreover the disc has unquestionably interacted with NGC 4254, a luminous spiral with an odd one-armed morphology, but lacking the massive interactor normally linked with such a feature. Published numerical models (Vollmer et al. 2005) of NGC 4254 call for a close interaction ∼108 years ago with a perturber of ∼1011 solar masses. This we take as further, independent evidence for the massive nature of VIRGOHI 21.

KW - Dark matter

KW - Galaxies: Intergalactic medium

KW - Galaxies: Peculiar

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A2 - De Jong, R.S.

PB - Springer Science and Business Media B.V.

T2 - International Conference on Island Universe: Structure and Evolution of Disk Galaxies, 2005

Y2 - 3 July 2005 through 5 July 2005

ER -

A dark galaxy in the virgo cluster imaged at 21-cm

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

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