2005MNRAS.359..755W


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.15CEST01:49:00

2005MNRAS.359..755W - Mon. Not. R. Astron. Soc., 359, 755-764 (2005/May-2)

The nature of the molecular gas system in the core of NGC 1275.

WILMAN R.J., EDGE A.C. and JOHNSTONE R.M.

Abstract (from CDS):

We present near-infrared integral field spectroscopy of the central kiloparsec of NGC 1275 at the heart of the Perseus cluster of galaxies, obtained with the Integral Field Unit (IFU) of the United Kingdom Infrared Telescope (UKIRT) Imaging Spectrometer (UIST). The nuclear ro-vibrational H2emission is spatially resolved and is likely to originate approximately 50pc from the active nucleus. The Paα emission is, by contrast, spatially unresolved. The requirements for thermal excitation of the H2by nuclear X-radiation, its kinematics on subarcsec scales and its stability against self-gravity together suggest that the observed H2is part of a clumpy disc rotating about the radio-jet axis. The sharp jump in the H2velocity across the nucleus implies a black hole mass of 3.4x108M, with a systematic error of ±0.18 dex due to the uncertainty in the radio-jet inclination. This agrees well with the value implied by the empirical correlation between black hole mass and stellar velocity dispersion for nearby elliptical galaxies, and is ∼100 times the stellar mass in this region.

Abstract Copyright: 2005 RAS

Journal keyword(s): galaxies: active - cooling flows - galaxies: individual: NGC 1275 - infrared: galaxies

Simbad objects: 4

goto Full paper

goto View the reference in ADS

Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 1882 1
2 3C 84 Sy2 03 19 48.1597607660 +41 30 42.114155434   13.10 12.48 11.09   ~ 3458 3
3 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6020 3
4 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2056 2

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2005MNRAS.359..755W and select 'bookmark this link' or equivalent in the popup menu


2019.10.15-01:49:00

© Université de Strasbourg/CNRS

    • Contact