7 papers · 1 filter
Early-type galaxies with core collapse supernovae
A. A. Hakobyan, A. R. Petrosian, B. McLean +4
It is widely accepted that the progenitors of core collapse SNe are young massive stars and therefore their host galaxies are mostly spiral or irregular galaxies dominated by a you…
Study of the HII regions in the spiral galaxy NGC6384
A. A. Hakobyan, A. R. Petrosian, A. A. Yeghiazaryan +1
The galaxy NGC6384 has been observed with an IPCS through H alpha and [NII] narrow-band interference filters for direct imagery with the 2.6 m Byurakan telescope. We studied main p…
The supernova rate per unit mass
F. Mannucci, M. Della Valle, N. Panagia +5
We compute the rate of supernovae (SNe) of different types along the Hubble sequence normalized to the near-infrared luminosity and to the stellar mass of the parent galaxies. This…
Extended Tidal Structure In Two Lyman Alpha-Emitting Starburst Galaxies
John M. Cannon, Evan D. Skillman, Daniel Kunth +4
We present new VLA C-configuration HI imaging of the Lyman Alpha-emitting starburst galaxies Tol 1924-416 and IRAS 08339+6517. The effective resolution probes neutral gas structure…
The First Deep ACS Lyman alpha Images of Local Starburst Galaxies
D. Kunth, C. Leitherer, J. M. Mas-Hesse +2
We report the first results from a deep Lya imaging program of local starburst galaxies with the Advanced Camera for Surveys (ACS) of the Hubble Space Telescope. The two observed g…
One Arc Degree Core Substructure of the Virgo Cluster
A. R. Petrosian, V. G. Gurzadyan, M. A. Hendry +1
The results of an analysis of the substructure of 1 degree field galaxies of the Virgo cluster by means of the S-tree technique developed by Gurzadyan et al, are represented. The e…