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Chandra Observation of the Starburst Galaxy NGC 2146
Tatsuya Inui, Hironori Matsumoto, Takeshi Go Tsuru +4
We present six monitoring observations of the starburst galaxy NGC 2146 using the Chandra X-ray Observatory. We have detected 67 point sources in the 8'.7 x 8'.7 field of view of t…
Kinematics of water masers in high-mass star forming regions
C. Goddi, L. Moscadelli, W. Alef +3
We have conducted multi-epoch EVN observations of the 22.2 GHz water masers towards four high-mass star forming regions (Sh 2-255 IR, IRAS 23139+5939, WB89-234, and OMC2). The (thr…
Probing the obscuring medium around active nuclei using masers: The case of 3C403
A. Tarchi, C. Henkel, M. Chiaberge +3
We report the first detection of a water megamaser in a radio-loud galaxy, 3C403, and present a follow-up study using the VLA. 3C403 has been observed as a part of a small sample o…
H2O megamasers: Accretion disks, jet interaction, outflows or massive star formation?
C. Henkel, J. A. Braatz, A. Tarchi +5
The 25 years following the serendipitous discovery of megamasers have seen tremendous progress in the study of luminous extragalactic HO emission. Single-dish monitoring and hi…
Dying Radio Galaxies In Clusters
M. Murgia, P. Parma, H. R. de Ruiter +2
We report the recent discovery of three `dying' radio galaxies belonging to the WENSS minisurvey sample: WNB1734+6407, WNB1829+6911 and WNB1851+5707. These sources have been select…
HI absorption at the center of NGC2146
A. Tarchi, A. Greve, A. B. Peck +4
We present 1.4 GHz HI absorption line observations towards the starburst in NGC2146, made with the VLA and MERLIN. The HI gas has a rotating disk/ring structure with column densiti…