3 papers
astro-ph2004
Spectroscopy of PNe in Sextans A, Sextans B, NGC 3109 and Fornax
Alexei Y. Kniazev, Eva K. Grebel, Alexander G. Pramskij +1
Planetary nebulae (PNe) and HII regions provide a probe of the chemical enrichment and star formation history of a galaxy from intermediate ages to the present day. We present the…
astro-ph2000
HS 0822+3542 - a new nearby extremely metal-poor galaxy
A. Y. Kniazev, S. A. Pustilnik, J. Masegosa +9
We present the results of spectrophotometry and BVR CCD photometry, as well as integrated HI radio measurements of a new blue compact galaxy (BCG) HS 0822+3542 with extremely low o…
astro-ph1999
Optical monitoring of CI Cam after the X-ray burst on April 1, 1998
E. A. Barsukova, S. N. Fabrika, S. A. Pustilnik +1
Results of optical spectral monitoring of CI Cam just after its a unusual bright and rapidly evolving X-ray burst are reported. This star is a symbiotic-type X-ray binary. The X-ra…