2014A&A...566A..80D


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.03CEST23:04:42

2014A&A...566A..80D - Astronomy and Astrophysics, volume 566A, 80-80 (2014/6-1)

HALOGAS observations of NGC 4414: fountains, interaction, and ram pressure.

DE BLOK W.J.G., JOZSA G.I.G., PATTERSON M., GENTILE G., HEALD G.H., JUETTE E., KAMPHUIS P., RAND R.J., SERRA P. and WALTERBOS R.A.M.

Abstract (from CDS):

We present deep HI imaging of the nearby spiral galaxy NGC 4414, taken as part of the Westerbork HALOGAS (Hydrogen Accretion in LOcal GAlaxieS) survey. The observations show that NGC 4414 can be characterized by a regularly rotating inner Hi disk, and a more disturbed outer disk. Modeling of the kinematics shows that the outer disk is best described by a U-shaped warp. Deep optical imaging also reveals the presence of a low surface brightness stellar shell, indicating a minor interaction with a dwarf galaxy at some stage in the past. Modeling of the inner disk suggests that about 4 percent of the inner Hi is in the form of extra-planar gas. Because of the disturbed nature of the outer disk, this number is difficult to constrain for the galaxy as a whole. These new, deep observations of NGC 4414 presented here show that even apparently undisturbed galaxies are interacting with their environment.

Abstract Copyright:

Journal keyword(s): galaxies: halos - galaxies: ISM - galaxies: kinematics and dynamics - galaxies: individual: NGC 4414 - galaxies: structure

Simbad objects: 11

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Number of rows : 11

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 300 GiG 00 54 53.4460065856 -37 41 03.182962667 8.83 8.69 8.13 7.46   ~ 1305 2
2 NAME Scl Group GrG 01 00 06 -33 44.2           ~ 462 0
3 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 813 1
4 NGC 4062 EmG 12 04 03.8088012817 +31 53 44.492255334   11.90 11.21 10.62 10.03 ~ 237 0
5 NGC 4274 LIN 12 19 50.665 +29 36 52.92 11.78 11.34 10.41     ~ 225 1
6 NAME Coma I Group GrG 12 22 19.4 +29 53 47           ~ 99 0
7 NGC 4414 GiG 12 26 27.089 +31 13 24.76 11.12 10.96 10.12     ~ 512 2
8 SDSS J122646.27+311904.8 G 12 26 46.287 +31 19 04.81           ~ 2 0
9 NGC 4448 H2G 12 28 15.428 +28 37 13.08   11.9       ~ 173 0
10 NGC 4559 H2G 12 35 57.6399424117 +27 57 35.859639262   10.46 10.01     ~ 532 1
11 NGC 4565 LIN 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 868 0

    Equat.    Gal    SGal    Ecl

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2020.07.03-23:04:42

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