Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Motsoaledi A"'
Autor:
Painter, S., Aydi, E., Motsoaledi, M., Sokolovsky, K. V., Strader, J., Buckley, D. A. H., Kochanek, C. S., Maccarone, T. J., Mukai, K., Shappee, B. J., Stanek, K. Z.
We report on spectroscopic and photometric observations of the AM CVn system ASASSN-21br, which was discovered in outburst by the All-Sky Automated Survey for Supernovae in February 2021. The outburst lasted for around three weeks, and exhibited a pr
Externí odkaz:
http://arxiv.org/abs/2407.00221
Autor:
Ramsay, G., Woudt, P. A., Kupfer, T., van Roestel, J., Patterson, K., Warner, B., Buckley, D. A. H., Groot, P. J., Heber, U., Irrgang, A., Jeffery, C. S., Motsoaledi, M., Schwartz, M. J., Wevers, T.
Blue Large Amplitude Pulsators (BLAPs) are a relatively new class of blue variable stars showing periodic variations in their light curves with periods shorter than a few tens of mins and amplitudes of more than ten percent. We report nine blue varia
Externí odkaz:
http://arxiv.org/abs/2204.03265
Autor:
Reenu Thomas, Claude Ondongo-Ezhet, Nini Motsoaledi, Mike Sharland, Michelle Clements, Sithembiso Velaphi
Publikováno v:
PLoS ONE, Vol 19, Iss 1, p e0297371 (2024)
ObjectiveTo determine trends in incidence, etiology and antimicrobial susceptibility of blood and cerebrospinal fluid (CSF) culture confirmed infections in hospitalized infants in a large tertiary neonatal unit in South Africa.MethodsSingle-center, r
Externí odkaz:
https://doaj.org/article/a16d99248abe41028d98ac663f05170e
Autor:
Thorstensen, John R., Motsoaledi, Mokhine, Buckley, David A. H., Woudt, Patrick, Warner, Brian
We report detailed follow-up observations of 8 cataclysmic variable stars (CVs) that are apparently AM Her stars, also called polars. For all, we either determine orbital periods for the first time, or improve on existing determinations. The seven fo
Externí odkaz:
http://arxiv.org/abs/2006.08078
Autor:
Gasque, L. Claire, Hening, Callum A., Hviding, Raphael E., Thorstensen, John R., Paterson, Kerry, Breytenbach, Hannes, Motsoaledi, Mokhine, Woudt, Patrick A.
Publikováno v:
Published in Astronomical Journal, 2019, volume 158, number 4
We report spectroscopy and photometry of the cataclysmic variable stars ASASSN-14ho and V1062 Cyg. Both are dwarf novae with spectra dominated by their secondary stars, which we classify as approxomately K4 and M0.5, respectively. Their orbital perio
Externí odkaz:
http://arxiv.org/abs/1909.13169
We report the discovery of a new eclipsing polar, CRTS J035010.7+323230 (hereafter CRTS J0350+3232). We identified this cataclysmic variable (CV) candidate as a possible polar from its multi-year Catalina Real-Time Transient Survey (CRTS) optical lig
Externí odkaz:
http://arxiv.org/abs/1906.07767
Autor:
Paterson, K., Woudt, P. A., Warner, B., Breytenbach, H., Gilligan, C. K., Motsoaledi, M., Thorstensen, J. R., Worters, H. L.
We present high-speed photometric observations of 25 cataclysmic variables detected by the All Sky Automated Search for Super-Novae (ASAS-SN), the Mobile Astronomical System of the TElescope-Robot (MASTER) and the Catalina Real-Time Transient Survey
Externí odkaz:
http://arxiv.org/abs/1903.11643
Autor:
Breytenbach, H., Buckley, D. A. H., Hakala, P., Thorstensen, J. R., Kniazev, A. Y., Motsoaledi, M., Woudt, P. A., Potter, S. B., Lipunov, V., Gorbovskoy, E., Balanutsa, P., Tyurina, N.
We report the discovery of a new eclipsing polar, MASTER OT J061451.70-272535.5, detected as an optical transient by MASTER auto-detection software at the recently commissioned MASTER-SAAO telescope. Time resolved (10-20 s) photometry with the SAAO 1
Externí odkaz:
http://arxiv.org/abs/1901.02669
Autor:
Halpern, J. P., Thorstensen, J. R., Cho, P., Collver, G., Motsoaledi, M., Breytenbach, H., Buckley, D. A. H., Woudt, P. A.
We conducted time-resolved optical spectroscopy and/or time-series photometry of 15 cataclysmic binaries that were discovered in hard X-ray surveys by the Swift Burst Alert Telescope (BAT) and the International Gamma-Ray Astrophysics Laboratory (INTE
Externí odkaz:
http://arxiv.org/abs/1804.08532
Autor:
Painter, S, Aydi, E, Motsoaledi, M, Sokolovsky, K V, Strader, J, Buckley, D A H, Kochanek, C S, Maccarone, T J, Mukai, K, Shappee, B J, Stanek, K Z
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Aug2024, Vol. 532 Issue 4, p4205-4216, 12p