Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Kannappan, S. J."'
Autor:
Richardson, C. T., Simpson, C., Polimera, M. S., Kannappan, S. J., Bellovary, J. M., Greene, C., Jenkins, S.
Current observational facilities have yet to conclusively detect $10^3 - 10^4 M_{\odot}$ intermediate mass black holes (IMBHs) that fill in the evolutionary gap between early universe seed black holes and $z \sim 0$ supermassive black holes. Dwarf ga
Externí odkaz:
http://arxiv.org/abs/2202.01330
Publikováno v:
Astrophys.J.708:841-861,2010
Recent work has identified a population of low-redshift E/S0 galaxies that lie on the blue sequence in color vs. stellar mass parameter space, where spiral galaxies typically reside. While high-mass blue-sequence E/S0s often resemble young merger or
Externí odkaz:
http://arxiv.org/abs/0911.2248
Publikováno v:
Astron.J.138:579,2009
We identify a population of morphologically defined E/S0 galaxies lying on the blue sequence at the present epoch. Using three samples, we analyze blue-sequence E/S0s with stellar masses >10^8 Msun, arguing that individual objects may be evolving eit
Externí odkaz:
http://arxiv.org/abs/0903.3695
Publikováno v:
Rev.Mex.Astron.Astrof.Ser.Conf.23:111-112,2005
In a previous study on gas-stellar counterrotation for a large sample of E/S0 and spiral galaxies (Kannappan & Fabricant 2001), two dwarf irregular galaxies were included, of which one was tentatively identified as a counterrotator. Here we extend th
Externí odkaz:
http://arxiv.org/abs/astro-ph/0507496
Publikováno v:
Rev.Mex.Astron.Astrof.Ser.Conf.17:188,2003
We have previously demonstrated that Tully-Fisher residuals correlate with tracers of star formation history (color and emission line equivalent width) for a broad sample of Sa--Sd spiral galaxies (Kannappan, Fabricant, & Franx 2002). Here we use the
Externí odkaz:
http://arxiv.org/abs/astro-ph/0206088
Autor:
Jansen, R. A., Kannappan, S. J.
Publikováno v:
Astrophys.Space Sci. 276 (2001) 1151-1159
We report on our observing program to obtain integrated spectrophotometry, intermediate and high resolution major axis spectra, and U,B,R surface photo- metry of a representative sample of ~200 galaxies in the nearby field. The main goal of this prog
Externí odkaz:
http://arxiv.org/abs/astro-ph/0104286
Autor:
Kannappan, S. J., Fabricant, D. G.
Publikováno v:
Astron.J.121:140-147,2001
We measure the frequency of bulk gas-stellar counterrotation in a sample of 67 galaxies drawn from the Nearby Field Galaxy Survey, a broadly representative survey of the local galaxy population down to M_B-15. We detect 4 counterrotators among 17 E/S
Externí odkaz:
http://arxiv.org/abs/astro-ph/0009234
Autor:
Kannappan, S. J., Fabricant, D. G.
Publikováno v:
ASPConf.Ser.230:449-450,2001
We analyze asymmetries in the gas rotation curves of 113 galaxies drawn from the Nearby Field Galaxy Survey, spanning a broad range of luminosities and morphologies. If the origin of the rotation curve is chosen to minimize the asymmetry, then ~23% o
Externí odkaz:
http://arxiv.org/abs/astro-ph/0009235
Autor:
Kannappan, S. J., Fabricant, D. G.
Publikováno v:
ASPConf.Ser.230:447-448,2001
We search for bulk counterrotation of the gas and stars in 67 galaxies of all types and a wide range of luminosities. Bulk counterrotation characterizes \~25-30% of E/S0's with extended gas, but at most a few percent of Sa-Sbc spirals. For S0's, the
Externí odkaz:
http://arxiv.org/abs/astro-ph/0009236
Publikováno v:
EAS Publications Series. 2011, Vol. 48, p419-421. 3p.
