Neutral hydrogen absorption at the centre of NGC 2146

被引：12
|
作者：
Tarchi, A
Greve, A
Peck, AB
Neininger, N
Wills, KA
Pedlar, A
Klein, U
机构：
[1] CNR, Inst Radioastron, I-40129 Bologna, Italy
[2] Osservatorio Astron Cagliari, I-09012 Capoterra, CA, Italy
[3] Inst Radio Astron Millimetr, F-38406 St Martin Dheres, France
[4] Harvard Smithsonian Ctr Astrophys, Submillimeter Array, Hilo, HI 96721 USA
[5] Univ Bonn, Inst Radioastron, D-53121 Bonn, Germany
[6] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England
[7] Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2004年 / 351卷 / 01期
关键词：
galaxies : individual : NGC 2146; galaxies : ISM; galaxies : kinematics and dynamics; galaxies : starburst; radio lines : galaxies;
D O I：
10.1111/j.1365-2966.2004.07792.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present 1.4-GHz H I absorption line observations towards the starburst in NGC 2146, made with the Very Large Array and the Multi-Element Radio-Linked Interferometer Network. The H I gas has a rotating disc/ring structure with column densities between 6 and 18 x 10(21) atom cm(-2). The H I absorption has a uniform spatial and velocity distribution, and does not reveal any anomalous material concentration or velocity in the central region of the galaxy which might indicate an encounter with another galaxy or a far-evolved merger. We conclude that the signs of an encounter causing the starburst should be searched for in the outer regions of the galaxy.
引用
收藏
页码：339 / 346
页数：8
相关论文
共 50 条
  • [41] NGC 2146's starburst region and extended structure
    Greve, A.
    Neininger, N.
    Sievers, A.
    Tarchi, A.
    ASTRONOMY & ASTROPHYSICS, 2006, 459 (02) : 441 - 451
  • [42] NGC 2146's starburst region and extended structure
    Greve, A.
    Neininger, N.
    Sievers, A.
    Tarchi, A.
    Astronomy and Astrophysics, 1600, 459 (02): : 441 - 451
  • [43] NEUTRAL HYDROGEN STUDY OF GALAXY NGC-253
    HUCHTMEIER, W
    ASTRONOMY & ASTROPHYSICS, 1972, 17 (02): : 207 - +
  • [44] Neutral hydrogen gas within and around NGC 1316
    Serra, P.
    Maccagni, F. M.
    Kleiner, D.
    de Blok, W. J. G.
    van Gorkom, J. H.
    Hugo, B.
    Iodice, E.
    Jozsa, G. I. G.
    Kamphuis, P.
    Kraan-Korteweg, R.
    Loni, A.
    Makhathini, S.
    Molnar, D.
    Oosterloo, T.
    Peletier, R.
    Ramaila, A.
    Ramatsoku, M.
    Smirnov, O.
    Smith, M.
    Spavone, M.
    Thorat, K.
    Trager, S. C.
    Venhola, A.
    ASTRONOMY & ASTROPHYSICS, 2019, 628
  • [45] A neutral hydrogen study of the Seyfert galaxy NGC 5033
    Thean, A. H. C.
    Mundell, C. G.
    Pedlar, A.
    Nicholson, R. A.
    Monthly Notices of the Royal Astronomical Society, 290 (01):
  • [46] Kinematics of the neutral hydrogen toward the core of NGC 3894
    Peck, AB
    Taylor, GB
    ASTROPHYSICAL JOURNAL, 1998, 502 (01): : L23 - L27
  • [47] NEUTRAL HYDROGEN IN SO-GALAXY-NGC-1291
    LEWIS, BM
    OBSERVATORY, 1970, 90 (979): : 264 - &
  • [48] THE DISTRIBUTION AND KINEMATICS OF NEUTRAL HYDROGEN IN NGC-807
    DRESSEL, LL
    IAU SYMPOSIA, 1987, (127): : 423 - 424
  • [49] THE DISTRIBUTION OF NEUTRAL HYDROGEN IN THE SOMBRERO GALAXY, NGC 4594
    BAJAJA, E
    VANDERBURG, G
    FABER, SM
    GALLAGHER, JS
    KNAPP, GR
    SHANE, WW
    ASTRONOMY & ASTROPHYSICS, 1984, 141 (02) : 309 - 317
  • [50] DISTRIBUTION OF NEUTRAL HYDROGEN AND KINEMATIC PROPERTIES OF NGC 6946
    GORDON, KJ
    REMAGE, NH
    ROBERTS, MS
    ASTROPHYSICAL JOURNAL, 1968, 154 (3P1): : 845 - &
12345