Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Hari Om Vats"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 521:1079-1085
In this article, we present the differential rotational profile of extreme ultraviolet (EUV) corona. For this purpose, we used observations with high resolution obtained from SDO/AIA at 19.3-nm wavelength from years 2011 to 2021. We found the higher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cf8470ab24489027d154ffbed9c2654
https://doi.org/10.1093/mnras/stad544
https://doi.org/10.1093/mnras/stad544
The long term study on the temporal variation of the rotation period of the solar photosphere, chromosphere and corona has been widely known. To date it is unclear whether the temporal variation of rotation period of the solar transition region has a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6de763d1988458f7dfe4b809e2a3e659
https://doi.org/10.21203/rs.3.rs-2847700/v1
https://doi.org/10.21203/rs.3.rs-2847700/v1
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 505:5228-5237
This paper examines long-term (more than four solar cycles) temporal and spatial fluctuations in the solar rotation by investigating radio-emission escapes from various layers of the solar atmosphere during the years 1967–2010. The flux modulation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66a2355a832df4c4238773c9ba100c2b
https://doi.org/10.1093/mnras/stab1574
https://doi.org/10.1093/mnras/stab1574
The present work is an effort to investigate possible radial variations in the solar coronal rotation by analyzing the solar radio emission data at 15 different frequencies (275-1755 MHz) for the period starting from July 1994 to May 1999. We used a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0015c59bfded435f9e4479ea30465ea5
http://arxiv.org/abs/2105.13169
http://arxiv.org/abs/2105.13169
The solar photosphere, chromosphere and corona are known to rotate differentially as a function of latitude. To date, it is unclear if the solar transition region also rotates differentially. In this paper, we investigate differential rotational prof
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd1721873e5733907b7217152d82026e
We report on the variability of rotation periods of solar coronal layers with respect to temperature (or, height). For this purpose, we have used the observations from Atmospheric Imaging Assembly (AIA) telescope on board Solar Dynamics Observatory (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe6e951e4d924958ca20dfd97c14c34f
http://arxiv.org/abs/2001.07048
http://arxiv.org/abs/2001.07048
Publikováno v:
2019 URSI Asia-Pacific Radio Science Conference (AP-RASC).
We present the results of variation in the rotational profile of solar corona for the period from 2012 to 2017, covering the peak and descending phases of the Solar Cycle 24. There is a clear evidence of North-South asymmetry in the solar coronal rot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::771dc2274feb54a2d12eca072d42fb25
https://doi.org/10.23919/ursiap-rasc.2019.8738564
https://doi.org/10.23919/ursiap-rasc.2019.8738564
Publikováno v:
Solar Physics. 292
Here we report in depth reanalysis of a paper by Vats et al. (2001) [Astrophys. J. 548, L87] based on the measurements of differential rotation with altitude as a function of observing frequencies (as lower and higher frequencies indicate higher and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f55796ccfc93ab52d6bda27df1d9e86
https://doi.org/10.1007/s11207-017-1071-x
https://doi.org/10.1007/s11207-017-1071-x
Autor:
Hari Om Vats
Publikováno v:
Planetary and Space Science. :158-163
This article presents analysis of interplanetary magnetic field (IMF) B measured at the L 1 point outside the geo-magnetosphere. The autocorrelation of daily values of the B x and B y component of the IMF reveal clear solar rotational modulation. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b78589c7200cb44ba3436156009aae1d
https://doi.org/10.1016/j.pss.2011.06.008
https://doi.org/10.1016/j.pss.2011.06.008
Autor:
Carl J. Hansen, Judith L. Provencal, D. A. H. Buckley, Waldemar Ogloza, Michael D. Reed, M. M. Brewer, Hari Om Vats, Mary E. Oksala, Jian-Ning Fu, R. E. Nather, Denis J. Sullivan, Luciano Fraga, Ramotholo Sefako, Ivan Bruni, J. E. S. Costa, Matt A. Wood, Wen Ping Chen, W. Strickland, Fergal Mullally, Roberto Silvotti, B. N. Ashoka, B. Walter, Timothy M. Brown, S. Hemar, R. Rosen, E. G. Meištas, P. Henrique, M. Andreev, X. Zhang, T. K. Watson, Kiran S. Baliyan, P. Ibbetson, Chuck Claver, Rimvydas Janulis, Harry L. Shipman, Michael H. Montgomery, Gerald Handler, J. C. Clemens, Antonio Kanaan, M. Chevreton, J. Dalessio, J.-E. Solheim, Thorsten Nagel, S. L. Kim, B. Pfeiffer, A. V. Chernyshev, Susan E. Thompson, Martin A. Barstow, S. Seetha, M. Redaelli, Donald E Winget, Atsuko Nitta, T. M. K. Marar, G. Vauclair, Michal Siwak, M. Yang, Xiao-Jun Jiang, Orlagh Creevey, Pawel Moskalik, Elia M. Leibowitz, A. V. Sergeev, J. R. Fremy, G. Pajdosz, M. Winiarski, S. J. Kleinman, D. Chandler, Andrzej S. Baran, Souza Oliveira Kepler, B. G. Castanheira, Chia-You Shih, Staszek Zola, O. Giovannini, D. Childers, Agnès Bischoff-Kim, Zs. Bognár, Donal O'Donoghue, N. Dolez, Steven D. Kawaler
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 415:1220-1227
PG 1351+489 is one of the 20 DBVs ― pulsating helium-atmosphere white dwarf stars ― known and has the simplest power spectrum for this class of star, making it a good candidate to study cooling rates. We report accurate period determinations for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eff6ec6cd934d00a13956828bfc01a0b
https://doi.org/10.1111/j.1365-2966.2011.18743.x
https://doi.org/10.1111/j.1365-2966.2011.18743.x