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of 4 247
pro vyhledávání: '"D Kandel"'
Autor:
D. Kandel, Roger W. Romani
Publikováno v:
The Astrophysical Journal, Vol 942, Iss 1, p 6 (2022)
The optical study of the heated substellar companions of black widow (BW) millisecond pulsars (MSPs) provides unique information on the MSP particle and radiation output and on the neutron star mass. Here we present an analysis of optical photometry
Externí odkaz:
https://doaj.org/article/a7d0c89fb9434e95b539e0b39ca66110
Publikováno v:
Journal of Gandaki Medical College, Vol 11, Iss 1, Pp 61-63 (2018)
Background: Pediatric age group comprises the important fraction of hospital admissions in our health care settings and it is the major challenge to address in the developing countries like ours. This study was carried out to find out the significant
Externí odkaz:
https://doaj.org/article/9d82cf5df8524949931d1bbfa1cb8ac9
Akademický článek
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We describe Keck-telescope spectrophotometry and imaging of the companion of the ``black widow" pulsar PSR~J0952$-$0607, the fastest known spinning neutron star (NS) in the disk of the Milky Way. The companion is very faint at minimum brightness, pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d0dc787c941e90d3db042a840bf94c5
In a multi-orbit (100 ks) $\mathrm{\it XMM-Newton}$ exposure of the original black widow pulsar, PSR J1959+2048, we measure the strong orbital modulation caused by intrabinary shock (IBS) emission. The IBS light curve peak appears asymmetric, which w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecc5aea4b8646858f1cd7b24e3c0b1c2
http://arxiv.org/abs/2107.08156
http://arxiv.org/abs/2107.08156
Keck-telescope spectrophotometry of the companion of PSR J1810+1744 shows a flat, but asymmetric light-curve maximum and a deep, narrow minimum. The maximum indicates strong gravity darkening near the L_1 point, along with a heated pole and surface w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cad7651fdee8b91672de28b77a065a0b
Autor:
Tom Marsh, Roger W. Romani, Fernando Camilo, B. Machenschalk, C. Aulbert, Mallory S. E. Roberts, M. A. Papa, D. Kandel, S. Kwang, Paul S. Ray, Jayanta Roy, H. J. Pletsch, Michael Kramer, Di Li, Elizabeth C. Ferrara, Paulo C. C. Freire, Cees Bassa, Matthew Kerr, Pei Wang, Scott M. Ransom, Banafsheh Beheshtipour, M. B. Mickaliger, L. Nieder, C. J. Clark, S. Sanpa-arsa, Benjamin William Allen, Lucas Guillemot, Rene P. Breton, C. Choquet, Ramesh Karuppusamy, Ewan Barr, Ismaël Cognard, H. Fehrmann, A. Ashok, Bhaswati Bhattacharyya, O. Behnke, V. S. Dhillon, J. Wu, Jason W. T. Hessels, Zhichen Pan, B. Steltner, Ziggy Pleunis
Publikováno v:
Astrophysical Journal Letters, 902(2):L46. IOP Publishing Ltd.
Astrophys.J.Lett.
Astrophys.J.Lett., 2020, 902 (2), pp.L46. ⟨10.3847/2041-8213/abbc02⟩
The Astrophysical journal letters
The Astrophysical journal letters, Bristol : IOP Publishing, 2020, 902 (2), pp.L46. ⟨10.3847/2041-8213/abbc02⟩
The Astrophysical Journal
The Astrophysical Journal Letters
Astrophys.J.Lett.
Astrophys.J.Lett., 2020, 902 (2), pp.L46. ⟨10.3847/2041-8213/abbc02⟩
The Astrophysical journal letters
The Astrophysical journal letters, Bristol : IOP Publishing, 2020, 902 (2), pp.L46. ⟨10.3847/2041-8213/abbc02⟩
The Astrophysical Journal
The Astrophysical Journal Letters
We report the discovery of 1.97 ms period gamma-ray pulsations from the 75 minute orbital-period binary pulsar now named PSR J1653-0158. The associated Fermi Large Area Telescope gamma-ray source 4FGL J1653.6-0158 has long been expected to harbor a b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6db58bf54c37c1c1de25832b38c0cf69
https://hdl.handle.net/11245.1/a0199658-9f57-40f2-a270-1bc993130f6f
https://hdl.handle.net/11245.1/a0199658-9f57-40f2-a270-1bc993130f6f
Redback millisecond pulsars (MSPs) typically show pronounced orbital variability in their X-ray emission due to our changing view of the intrabinary shock (IBS) between the pulsar wind and stellar wind from the companion. Some redbacks ("transitional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77d37b9663cb659d9672b6087f96aa31
http://arxiv.org/abs/2009.13561
http://arxiv.org/abs/2009.13561
Autor:
Roger W. Romani, D. Kandel
We present a model for atmospheric wind circulation in binary millisecond pulsar (MSP) companions, showing how the optical light curve (LC) and radial velocities (RV) are sensitive to the wind flow, causing LC orbital phase shifts and asymmetries, as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f3966a1b10063bfe04af7f6cbad22ba
http://arxiv.org/abs/2002.12483
http://arxiv.org/abs/2002.12483
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 478:530-540
Recent Planck observations have revealed some of the important statistical properties of synchrotron and dust polarisation, namely, the $B$ to $E$ mode power and temperature-$E$ (TE) mode cross-correlation. In this paper, we extend our analysis in Ka
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01f4e1de37f4e5db97b1262ec6da3c15
https://doi.org/10.1093/mnras/sty1115
https://doi.org/10.1093/mnras/sty1115