A Virgo high-resolution HOT kinematical survey I. NGC 4438

被引：0
|
作者：
Chemin, L. [1 ,2 ]
Cayatte, V. [2 ]
Balkowski, C. [2 ]
Amram, P. [3 ]
Carignan, C. [1 ]
Boselli, A. [4 ]
Adami, C. [4 ]
Marcelin, M. [3 ]
Garrido, O. [2 ,3 ]
Hernandez, O. [1 ,3 ]
Boulesteix, J. [3 ]
机构：
[1] Département de Physique, Université de Montréal, Succ. Centre-ville, Montréal, Que. H3C 3J7, Canada
[2] Observatoire de Paris, Section Meudon, Université Paris 7, 5 Pl. Janssen, 92195 Meudon, France
[3] Laboratoire d'Astrophysique de Marseille, 2 Pl. Le Verrier, 13248 Marseille, France
[4] Laboratoire d'Astrophysique de Marseille, Traverse du Siphon-Les Trois Lucs, 13012 Marseille, France
来源：
Astronomy and Astrophysics | 1600年 / 436卷 / 02期
关键词：
Astrophysics - Environmental impact - Extraterrestrial atmospheres - Hydrogen - Kinematics - Solar system - Ultraviolet radiation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
New Hα emission-line observations of the Virgo cluster galaxy NGC 4438 are presented. Fabry-Perot interferometry data at an effective angular resolution of ∼2″ are used to map the kinematics of the ionized gas in the galaxy. For the first time we obtain a velocity field covering a large area in NGC 4438, much larger than that deduced from previous Hi and CO maps. The kinematics of the extended, low surface brightness Hα filaments to the West of the galactic disk is discussed. We report on the discovery of a northern Hα structure which is clumpier than the other filaments. Evidence for multiple spectral components through the data-cube are presented in a nuclear shell and in the approaching half of the disk. The role of VCC 1040, a dwarf elliptical galaxy located to the South of NGC 4438, is presented to investigate the origin of a small-scale stellar tail of NGC 4438. It could be due to a minor tidal interaction between the two galaxies. © ESO 2005.
引用
收藏
页码：469 / 478
相关论文
共 50 条
  • [41] HIGH-RESOLUTION RADIO CONTINUUM SURVEY OF M51 AND NGC 5195 AT 1415 MHZ
    MATHEWSON, DS
    VANDERKR.PC
    BROUW, WN
    ASTRONOMY & ASTROPHYSICS, 1972, 17 (03): : 468 - +
  • [42] HIGH-RESOLUTION H I DISTRIBUTIONS AND MULTI-WAVELENGTH ANALYSES OF MAGELLANIC SPIRALS NGC 4618 AND NGC 4625
    Kaczmarek, Jane F.
    Wilcots, Eric M.
    ASTRONOMICAL JOURNAL, 2012, 144 (02):
  • [43] HIGH-RESOLUTION CO OBSERVATIONS OF NGC-1275
    REUTER, HP
    POHL, M
    LESCH, H
    SIEVERS, AW
    ASTRONOMY & ASTROPHYSICS, 1993, 277 (01) : 21 - 26
  • [44] HIGH-RESOLUTION MIDINFRARED OBSERVATIONS OF NGC-7469
    MILES, JW
    HOUCK, JR
    HAYWARD, TL
    ASTROPHYSICAL JOURNAL, 1994, 425 (01): : L37 - &
  • [45] High-resolution imaging of photodissociation regions in NGC 6334
    Burton, MG
    Ashley, MCB
    Marks, RD
    Schinckel, AE
    Storey, JWV
    Fowler, A
    Merrill, M
    Sharp, N
    Gatley, I
    Harper, DA
    Loewenstein, RF
    Mrozek, F
    Jackson, JM
    Kraemer, KE
    ASTROPHYSICAL JOURNAL, 2000, 542 (01): : 359 - 366
  • [46] A high-resolution VLA and optical study of NGC 604
    Churchwell, E
    Goss, WM
    ASTROPHYSICAL JOURNAL, 1999, 514 (01): : 188 - 194
  • [47] High-resolution CO survey of Virgo spirals at nobeyama - Massive cores inferred from central rotation curves
    Sofue, Y
    Nakanishi, H
    Onodera, S
    Koda, J
    Kohno, K
    DARK MATTER IN GALAXIES, 2004, (220): : 319 - 320
  • [48] HIGH-RESOLUTION CO OBSERVATIONS OF NGC-1068
    KANEKO, N
    MORITA, K
    FUKUI, Y
    SUGITANI, K
    IWATA, T
    NAKAI, N
    KAIFU, N
    LISZT, HS
    ASTROPHYSICAL JOURNAL, 1989, 337 (02): : 691 - 703
  • [49] HIGH-RESOLUTION OBSERVATIONS OF THE MULTICOMPONENT NUCLEUS OF NGC 5929
    WILSON, AS
    KEEL, WC
    ASTRONOMICAL JOURNAL, 1989, 98 (05): : 1581 - 1587
  • [50] HIGH-RESOLUTION RADIO OBSERVATIONS OF NGC-4874
    FERETTI, L
    GIOVANNINI, G
    ASTRONOMY & ASTROPHYSICS, 1987, 182 (01) : 15 - 20
12345