2019A&A...623A..52B


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.28CET11:18:03

2019A&A...623A..52B - Astronomy and Astrophysics, volume 623A, 52-52 (2019/3-1)

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE). V. Properties of the ionised gas filament of M 87.

BOSELLI A., FOSSATI M., LONGOBARDI A., CONSOLANDI G., AMRAM P., SUN M., ANDREANI P., BOQUIEN M., BRAINE J., COMBES F., COTE P., CUILLANDRE J.C., DUC P.A., EMSELLEM E., FERRARESE L., GAVAZZI G., GWYN S., HENSLER G., PENG E.W., PLANA H., ROEDIGER J., SANCHEZ-JANSSEN R., SARZI M., SERRA P. and TRINCHIERI G.

Abstract (from CDS):

We observed the giant elliptical galaxy M 87 during the Virgo Environmental Survey Tracing Galaxy Evolution (VESTIGE), a blind narrow-band Hα+[NII] imaging survey of the Virgo cluster carried out with MegaCam at the Canada French Hawaii Telescope (CFHT). The deep narrow-band image confirmed the presence of a filament of ionised gas extending up to ~=3kpc in the north-western direction and ~=8kpc to the southeast, with a couple of plumes of ionised gas, the weakest of which, at ~=18kpc from the nucleus, was previously unknown. The analysis of deep optical images taken from the NGVS survey confirms that this gas filament is associated with dust seen in absorption which is now detected up to ~=2.4kpc from the nucleus. We also analysed the physical and kinematical properties of the ionised gas filament using deep IFU MUSE data covering the central 4.8x4.8kpc2 of the galaxy. The spectroscopic data confirm a perturbed kinematics of the ionised gas, with differences in velocity of ~=700-800km/s on scales of ≤1kpc. The analysis of 2D diagnostic diagrams and the observed relationship between the shock-sensitive [OI]/Hα line ratio and the velocity dispersion of the gas suggest that the gas is shock-ionised.

Abstract Copyright: © A. Boselli et al. 2019

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: Virgo - galaxies: evolution - galaxies: interactions - galaxies: ISM - galaxies: individual: M 87

Simbad objects: 5

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Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 3C 84 Sy2 03 19 48.1597607660 +41 30 42.114155434   13.10 12.48 11.09   ~ 3616 3
2 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5980 0
3 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6349 3
4 NGC 4696 BiC 12 48 49.277 -41 18 39.92   11.21   10.7   ~ 459 3
5 ACO 2052 ClG 15 16 45.5 +07 00 01           ~ 687 1

    Equat.    Gal    SGal    Ecl

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2021.02.28-11:18:03

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