Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Kajal K. Ghosh"'
Autor:
D. Narasimha, Kajal K. Ghosh
Publikováno v:
The Astrophysical Journal. 692:694-701
We report the serendipitous discovery of an "Einstein Ring" in the optical band from the Sloan Digital Sky Survey (SDSS) data and associated four images of a background source. The lens galaxy appears to be a nearby dwarf spheroid at a redshift of 0.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88cab25e579dac73890e971725149adf
https://doi.org/10.1088/0004-637x/692/1/694
https://doi.org/10.1088/0004-637x/692/1/694
Publikováno v:
The Astronomical Journal. 136:212-220
We present radio through X-ray results of a bright (10^{40} erg/s in the 0.5 to 8.0 keV band) ultraluminous X-ray source (ULX), CXOU J153434.9+151149, in the starburst, interacting pair of galaxies NGC 5953/5954. Chandra image of this ULX shows that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c214f33405cbf3702c60c78a09edbf6c
https://doi.org/10.1088/0004-6256/136/1/212
https://doi.org/10.1088/0004-6256/136/1/212
Autor:
Kajal K. Ghosh, Brian Punsly
Publikováno v:
The Astrophysical Journal. 674:L69-L72
It is been known for more than a decade that BALQSOs (broad absorption line quasars) are highly attenuated in the X-ray regime compared to other quasars, especially in the soft band ($< $ 1 keV). Using X-ray selection techniques we have found "soft X
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9fc01dad8133c5df01d55d5363d6a72
https://doi.org/10.1086/529138
https://doi.org/10.1086/529138
Autor:
Kajal K. Ghosh, Brian Punsly
Publikováno v:
The Astrophysical Journal. 661:L139-L142
It has been shown based on radio variability arguments that some BALQSOs (broad absorption line quasars) are viewed along the polar axis (orthogonal to accretion disk) in the recent article of Zhou et al. These arguments are based on the brightness t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::281c1253abfa7e229ae399c58fae46ba
https://doi.org/10.1086/518859
https://doi.org/10.1086/518859
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 371:1587-1593
We report here the multiwavelength observations of the bright supersoft X-ray source, RBS 1032. Most likely, its optical counterpart is a non-emission-line dwarf galaxy with a prominent nucleus. Line and band indices of this nucleus, clearly suggest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb3cd443f1193154bd09fc2a0259dc7a
https://doi.org/10.1111/j.1365-2966.2006.10723.x
https://doi.org/10.1111/j.1365-2966.2006.10723.x
Publikováno v:
The Astrophysical Journal. 647:1030-1039
ThenearbySB(r)bgalaxy NGC3351 (M95)displays an � 600 pcdiameter star-forming circumnuclearringfueled bygas accretedthrough astellar bar.TheX-ray emission from this region is composedof numerous pointlikesources embedded in hot (kT ¼ 0:5 � 0:1 ke
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b598de980960d55b2b32b916b41d29b8
https://doi.org/10.1086/504680
https://doi.org/10.1086/504680
Autor:
Ronald F. Elsner, Jeremy J. Drake, Bruce E. Woodgate, Kajal K. Ghosh, Randy A. Kimble, Edward J. Wassell, Carol A. Grady, Douglas A. Swartz
Publikováno v:
The Astrophysical Journal. 628:811-816
Chandra X-ray imaging spectroscopy of the nearby Herbig Ae star HD 163296 at 100 AU angular resolution is reported. A point-like, soft (kT~0.5 keV), emission-line source is detected at the location of the star with an X-ray luminosity of 4.0e29 erg/s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::021ce510ff7420738b0419b2806099f7
https://doi.org/10.1086/429984
https://doi.org/10.1086/429984
Publikováno v:
The Astrophysical Journal. 623:815-825
The E3 giant elliptical galaxy NGC5018 was observed with the Chandra X-ray Observatory on 14 April 2001. Results of analysis of these X-ray data as well as of complementary optical, infrared, and radio data are reported. Seven X-ray point sources, in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4c9814aff158f65f905ecf3de2b50b4
https://doi.org/10.1086/428939
https://doi.org/10.1086/428939
Publikováno v:
Journal of The Korean Astronomical Society. 38:1-6
We searched for X-ray emission from the 665 galaxies inside and towards the nearby voids by analyzing the ROSAT All-Sky Survey (RASS) data as well as the ROSAT pointed observations (PSPC). As a result we have detected six X-ray emitting galaxies. Two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::923d4a83b40d2b3cf43f6926a9b1f54e
https://doi.org/10.5303/jkas.2005.38.1.001
https://doi.org/10.5303/jkas.2005.38.1.001
Publikováno v:
The Astrophysical Journal. 607:L111-L114
RX J0136.93510 is an unusual narrow-line Seyfert 1 galaxy (NLS1). We have detected extended (∼12 or ∼54 kpc at the source frame) soft X-ray emission in the ROSAT High Resolution Imager image, accounting for 20% of the total emission. We have also
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ff58e2274416fd41091bd80141c9219
https://doi.org/10.1086/421976
https://doi.org/10.1086/421976