Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Ajit K. Kembhavi"'
Autor:
Ajit K. Kembhavi, Jayaram N. Chengalur
Publikováno v:
Biographical Memoirs of Fellows of the Royal Society.
Professor Govind Swarup was a distinguished radio astronomer who drove the development of the field in India. Over a long career he built the Ooty Radio Telescope (ORT) and the Giant Metrewave Radio Telescope (GMRT), which are world-class facilities.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b6f215d24d73fb0750abade3fba2b6f
https://doi.org/10.1098/rsbm.2022.0049
https://doi.org/10.1098/rsbm.2022.0049
Autor:
Mariano Mendez, Kaushal Sharma, Ajit K. Kembhavi, Jakub K. Orwat-Kapola, K. Alabarta, R. Pattnaik, Manoneeta Chakraborty, Diego Altamirano
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 501(3457). Oxford University Press
Low Mass X-ray binaries (LMXBs) are binary systems where one of the components is either a black hole or a neutron star and the other is a less massive star. It is challenging to unambiguously determine whether a LMXB hosts a black hole or a neutron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e463af5453fda0028acf7e1a2289c0d0
https://eprints.soton.ac.uk/447641/
https://eprints.soton.ac.uk/447641/
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 477:894-903
We present an automated method for the detection of bar structure in optical images of galaxies using a deep convolutional neural network which is easy to use and provides good accuracy. In our study we use a sample of 9346 galaxies in the redshift r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e19250c7d881401cafe5a55c5a3e4fde
https://doi.org/10.1093/mnras/sty627
https://doi.org/10.1093/mnras/sty627
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 473:3584-3597
We present detailed broadband UV/optical to X-ray spectral variability of the Seyfert 1 galaxy 1H 0419-577 using six XMM-Newton observations performed during 2002-2003. These observations covered a large amplitude variability event in which the soft
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::532490002f71883475bbe12aa3c8688f
https://doi.org/10.1093/mnras/stx2608
https://doi.org/10.1093/mnras/stx2608
Autor:
Michael Parker, Alex Markowitz, A. C. Fabian, Gulab C. Dewangan, Ciro Pinto, William Alston, Labani Mallick, Ranjeev Misra, Ajit K. Kembhavi, Poshak Gandhi
We present the first results from a detailed spectral-timing analysis of a long ($\sim$130 ks) XMM-Newton observation and quasi-simultaneous NuSTAR and Swift observations of the highly-accreting narrow-line Seyfert 1 galaxy Mrk 1044. The broadband (0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5aeb2d7b105d4f1d0745b76189de5e16
Autor:
T. Agrawal, Deoyani Nandrekar, Sharmad Navelkar, Ashish Mahabal, Santosh Jagade, Kaustubh Vaghmare, Mohasin Shaikh, T. Kale, A. Vibhute, Asis Kumar Chattopadhyay, Prerak Garg, Ajit K. Kembhavi
Publikováno v:
Astronomy and Computing. 11:126-137
AstroStat is an easy-to-use tool for performing statistical analysis on data. It has been designed to be compatible with Virtual Observatory (VO) standards thus enabling it to become an integral part of the currently available collection of VO tools.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43291e490f2feed0d0bfd6c6f2331edd
https://doi.org/10.1016/j.ascom.2015.02.004
https://doi.org/10.1016/j.ascom.2015.02.004
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 450:873-882
We present observations of pseudobulges in S0 and spiral galaxies using imaging data taken with the Spitzer Infra-Red Array Camera. We have used 2-d bulge-disk-bar decomposition to determine structural parameters of 185 S0 galaxies and 31 nearby spir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ce371dd8766d63faccb422b6d720d85
https://doi.org/10.1093/mnras/stv668
https://doi.org/10.1093/mnras/stv668
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 432:430-437
We combine UV/Optical/near-IR/mid-IR data on a sample of ~240 S0 galaxies to examine various star formation related processes in them. We split the sample into bright and faint S0 galaxies based on their K band luminosity. Comparing the FUV-NUV versu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc61efbbd9544762d7613d067f461a0f
https://doi.org/10.1093/mnras/stt478
https://doi.org/10.1093/mnras/stt478
S0 galaxies are known to host classical bulges with a broad range of size and mass, while some such S0s are barred and some not. The origin of the bars has remained as a long-standing problem -- what made bar formation possible in certain S0s? By ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f594a00f578b106b1930652008ddc9c4
http://arxiv.org/abs/1607.08603
http://arxiv.org/abs/1607.08603
We perform X-ray/ultraviolet (UV) spectral and X-ray variability studies of the radio-loud narrow-line Seyfert 1 (NLS1) galaxy RX J1633.3+4719 using XMM-Newton and Suzaku observations from 2011 and 2012. The 0.3-10 keV spectra consist of an ultrasoft
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e821daaa8b22e411f7921823708b676
http://arxiv.org/abs/1604.03320
http://arxiv.org/abs/1604.03320