A search for neutral hydrogen in red elliptical galaxies

Neutral hydrogen in nearby elliptical and lenticular galaxies: the continuing formation of early-type galaxies

We present the results of deep Westerbork Synthesis Radio Telescope observations of neutral hydrogen in 12 nearby elliptical and lenticular galaxies. The selected objects come from a representative sample of nearby galaxies earlier studied at optical wavelengths with the integral-field spectrograph SAURON. They are field galaxies, or (in two cases) located in poor group environments. We detect ...

Infrared-red Cores in Nearby Elliptical Galaxies

We present the Spitzer Space Telescope Infrared Array Camera (IRAC) observations for a sample of local elliptical galaxies to study later stages of AGN activities. A sample of 36 elliptical galaxies is selected from the Palomar spectroscopic survey. We detect nuclear non-stellar infrared emission in 9 of them. There is unambiguous evidence of circumnuclear dust in these 9 galaxies in their opti...

Neutral hydrogen in dwarf galaxies I . The

This paper is the first in a series presenting a sample of 30 late-type dwarf galaxies, observed with the Westerbork Synthesis Radio Telescope (WSRT) in the 21-cm line of neutral atomic hydrogen (HI). The sample itself, the HI content of and the HI distribution in the sample galaxies are briefly discussed. Four sample galaxies were also detected in the continuum.

Mapping Neutral Hydrogen in External Galaxies

The neutral gas content of X-ray bright elliptical galaxies

Sensitive CO observations are presented for a sample of elliptical galaxies which are luminous X-ray and weak far infrared (FIR) emitters. Only non-detections were obtained. The absence of detectable amounts of CO (this includes the previously ‘detected’ prototypical galaxy NGC4472) does not support those standard cooling flow scenarios in which dust grain sputtering reduces the FIR luminosity,...