Zobrazeno 1 - 10
of 478
pro vyhledávání: '"Reed M. D."'
Autor:
Baran, A. S., Charpinet, S., Østensen, R. H., Reed, M. D., Van Grootel, V., Lyu, C., Telting, J. H., Németh, P.
We present results of a continuation of our Transiting Exoplanet Survey Satellite (TESS) search for short-period pulsations in compact stellar objects observed during Years 2 and 4 of the TESS mission that targeted the northern ecliptic hemisphere. F
Externí odkaz:
http://arxiv.org/abs/2403.02384
Autor:
Ma, Xiao-Yu, Zong, Weikai, Fu, Jian-Ning, Reed, M. D., Wang, Jiaxin, Charpinet, Stephane, Su, Jie
We present an analysis of oscillation mode variability in the hot B subdwarf star EPIC~220422705, a new pulsator discovered from $\sim78$~days of {\em K}2 photometry. The high-quality light curves provide a detection of 66 significant independent fre
Externí odkaz:
http://arxiv.org/abs/2206.01887
Autor:
Mukadam A. S., Kepler S. O., Winget D. E., Nather R. E., Kilic M., Mullally F., Hippel T. von, Kleinman S. J., Nitta A., Guzik J. A., Bradley P. A., Matthews J., Sekiguchi K., Sullivan D. J., Shobbrook R. R., Birch P., Jiang X. J., Xu D. W., Joshi S., Ashoka B.N., Ibbetson P., Leibowitz E., Ofek E. O., Meištas E. G., Janulis R., Ališauskas D., Kalytis R., Handler G., Kilkenny D., O’Donoghue D., Kurtz D. W., Müller M., Moskalik P., Ogłoza W., Zoła S., Krzesiński J., Johannessen F., Gonzalez-Perez J. M., Solheim J-E., Silvotti R., Bernabei S., Vauclair G., Dolez N., Fu J. N., Chevreton M., Manteiga M., Súarez O., Ulla A., Cunha M. S., Metcalfe T. S., Kanaan A., Fraga L., Costa A. F. M., Giovannini O., Fontaine G., Bergeron P., O’Brien M. S., Sanwal D., Wood M. A., Ahrens T. J., Silvestri N., Klumpe E. W., Kawaler S. D., Riddle R., Reed M. D., Watson T. K.
Publikováno v:
Open Astronomy, Vol 12, Iss 1, Pp 71-103 (2003)
We report our analysis of the stability of pulsation periods in the DAV star (pulsating hydrogen atmosphere white dwarf) ZZ Ceti, also called R548. Based on observations that span 31 years, we conclude that the period 213.132605 s observed in ZZ Ceti
Externí odkaz:
https://doaj.org/article/2f43468678c44bc7b5f349f3b424d8fd
Autor:
Sanjayan, S., Baran, A. S., Ostrowski, J., Németh, P., Pelisoli, I., Østensen, R., Kern, J. W., Reed, M. D., Sahoo, S. K.
Publikováno v:
Monthly Notices of the Royal Astronomical Society Volume 509 Issue 1 January 2022 Pages 763 777
We report results of our analysis of the Kepler superaperture LC data of the open cluster NGC6791 to search for pulsating sdB stars. We checked all pixels and we found only three sdB stars to be pulsating, KIC2569576 (B3), KIC2438324 (B4) and KIC2437
Externí odkaz:
http://arxiv.org/abs/2111.09873
Autor:
Reed, M. D., Slayton, A. J., Baran, A. S., Telting, J. H., Ostensen, R. H., Jeffery, C. S., Uzundag, M., Sanjayan, S.
We report the discovery of four new pulsating subdwarf B (sdBV) stars from Campaign 7 of the Kepler spacecraft's K2 mission. EPICs 215776487, 217280630, 218366972, and 218717602 are all gravity (g)-mode pulsators and we also detect two pressure (p)-m
Externí odkaz:
http://arxiv.org/abs/2108.07145
Autor:
Baran, A. S., Østensen, R. H., Heber, U., Irrgang, A., Sanjayan, S., Telting, J. H., Reed, M. D., Ostrowski, J.
Publikováno v:
2021, MNRAS, 503, 2157
We present an overview of eclipsing systems of the HW-Virginis type, based on space observations from the TESS Mission. We perform a detailed analysis of the properties of AA Dor, which was monitored for almost a full year. This excellent time-series
Externí odkaz:
http://arxiv.org/abs/2105.01074
Autor:
Sahoo, S. K., Baran, A. S., Heber, U., Ostrowski, J., Sanjayan, S., Silvotti, R., Irrgang, A., Uzundag, M., Reed, M. D., Shoaf, K. A., Raddi, R., Vuckovic, M., Ghasemi, H., Zong, W., Bell, K. J.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 495, Issue 3, July 2020, Pages 2844-2857
We report on the detection of pulsations of three pulsating subdwarf B stars observed by the TESS satellite and our results of mode identification in these stars based on an asymptotic period relation. SB 459 (TIC 067584818), SB 815 (TIC 169285097) a
Externí odkaz:
http://arxiv.org/abs/2006.04126
Publikováno v:
Open Astronomy, Vol 10, Iss 3, Pp 479-480 (2001)
Externí odkaz:
https://doaj.org/article/c58a483d560342dfa9ee833d9942ba7f
Autor:
Silvotti, R., Uzundag, M., Baran, A. S., Ostensen, R. H., Telting, J. H., Heber, U., Reed, M. D., Vuckovic, M.
HD4539 (alias PG0044+097 or EPIC220641886) is a bright (V=10.2) long-period V1093 Her-type subdwarf B (sdB) pulsating star that was observed by the Kepler spacecraft in its secondary (K2) mission. We use the K2 light curve (78.7 days) to extract 169
Externí odkaz:
http://arxiv.org/abs/1908.03558
KIC 10001893 is a V1093 Her type pulsating subdwarf-B star, which was observed extensively by the Kepler spacecraft. It was a part of the survey searching for compact pulsators in the Kepler field of view. An amplitude spectrum of the star demonstrat
Externí odkaz:
http://arxiv.org/abs/1812.05675