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相关论文: An Unusual Eclipse of a Pre-Main Sequence Star in …

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In recent years, an increasing number of publications have been addressed to the peculiar and mysterious pre-main sequence star V582 Mon, also known as KH 15D. This extraordinary T Tauri star, located in the young star cluster NGC 2264,…

天体物理学 · 物理学 2009-11-10 Paolo Maffei , Stefano Ciprini , Gino Tosti

Eclipses in the 14.4-day period double-lined binary SS Lac were observed photographically and visually early in the 20th century, but stopped some 50 or 60 years ago. This has been explained by the presence of a distant third star in the…

天体物理学 · 物理学 2009-10-31 Guillermo Torres

We report the discovery of a new short-period pre-main-sequence eclipsing binary, RX Gru, orbited by a distant circumbinary companion. We characterized the system by analysing the photometric observations from the Solaris network, the…

太阳与恒星天体物理 · 物理学 2026-05-12 F. Marcadon , A. Moharana , T. B. Pawar , G. Pawar , K. G. Hełminiak , J. P. Marques , M. Konacki

Most field stars will have encountered the highest stellar density and hence the largest number of interactions in their birth environment. Yet the stellar dynamics during this crucial phase are poorly understood. Here we analyze the radial…

We report our investigation of 1SWASP J234401.81-212229.1, a variable with a 18461.6 s period. After identification in a 2011 search of the SuperWASP archive for main-sequence eclipsing binary candidates near the distribution's short-period…

太阳与恒星天体物理 · 物理学 2015-06-17 M. E. Lohr , A. J. Norton , U. C. Kolb , D. R. S. Boyd

By cross-matching the eclipsing binary catalog from TESS with that from LAMOST MRS, semi-detached eclipsing binaries with radial velocities coverage spanning more than 0.3 phases were authenticated. The absolute parameters for these systems…

太阳与恒星天体物理 · 物理学 2024-12-11 Yajuan Lei , Guiping Zhou , Liang Wang , Guangwei Li , Kai Li , Tuan Yi

We report the discovery of a low-mass (0.26 +/- 0.02, 0.15 +/- 0.01 Msol) pre-main-sequence eclipsing binary with a 5.3 day orbital period. JW 380 was detected as part of a high-cadence time-resolved photometric survey (the Monitor project)…

Binaries with a white dwarf primary and a main sequence secondary can be used to test our understanding of both single and binary star evolution. A small fraction of such systems experienced a common-envelope phase from which they emerged…

太阳与恒星天体物理 · 物理学 2022-08-08 R. Priyatikanto , C. Knigge , S. Scaringi , J. Brink , D. A. H. Buckley

The eclipsing binaries are still important objects for our understanding of the universe. Especially these ones located within the more complex multiple systems can help us solving the problem of their origin and subsequent evolution of…

太阳与恒星天体物理 · 物理学 2019-08-15 P. Zasche , R. Uhlar , P. Svoboda , J. Jurysek , D. Korcakova , M. Wolf , M. Slechta , L. Kotkova

Short-period white dwarf+main-sequence binaries are Post-Common-Envelope Binaries (PCEB) that have survived a common envelope phase. Such systems, if detached and eclipsing, enable precise measurements of the constituent stars, providing a…

Boyajian's Star (KIC 8462852) undergoes mysterious, irregular eclipses that aren't yet explained. It also appears to have dimmed over a time of several years, possibly decades. I show that Kepler's detection of a phenomenon with a duration…

星系天体物理 · 物理学 2016-10-12 Brian C. Lacki

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…

Accurate photometric CoRoT space observations of a secondary seismological target, HD 174884, led to the discovery that this star is an astrophysically important double-lined eclipsing spectroscopic binary in an eccentric orbit (e of about…

太阳与恒星天体物理 · 物理学 2015-05-14 C. Maceroni , J. Montalban , E. Michel , P. Harmanec , A. Prsa , M. Briquet , E. Niemczura , T. Morel , D. Ladjal , M. Auvergne , A. Baglin , F. Baudin , C. Catala , R. Samadi , C. Aerts

We present the reanalysis of three 15 micron JWST/MIRI secondary eclipses of LHS 1140 c, a warm super-Earth (R$_{\rm{p}}$ = 1.272 R$_{\oplus}$) in a 3.78-day orbit around an M4.5 dwarf. We present a novel method for data reduction that…

地球与行星天体物理 · 物理学 2025-10-14 Alexandra Rochon , Étienne Artigau , Drew Weisserman , Lisa Dang , René Doyon , Charles Cadieux , Ryan Cloutier

We observed an X-ray selected, deeply eclipsing cataclysmic variable IR Com (=S 10932). We detected an outburst occurring on 1996 January 1. The light curve of the outburst closely resembled that of a normal outburst of an SU UMa-type dwarf…

天体物理学 · 物理学 2015-06-24 Taichi Kato , Hajime Baba , Daisaku Nogami

KIC 7177553 is a quadruple system containing two binaries of orbital periods 16.5 and 18 d. All components have comparable masses and are slowly rotating, non-evolved stars of spectral type near G2V. The longer period binary is eclipsing…

太阳与恒星天体物理 · 物理学 2017-01-11 James MacDonald , D. J. Mullan

HST/NICMOS images of the class I protostar TMR-1 (IRAS04361+2547) reveal a faint companion with 10.0" = 1400 AU projected separation. The central protostar is itself resolved as a close binary with 0.31" = 42 AU separation, surrounded by…

天体物理学 · 物理学 2009-10-30 S. Terebey , D. Van Buren , D. L. Padgett , T. Hancock , M. Brundage

Photometric analysis of $BVR_C$ light curves of newly discovered eclipsing binary GSC 0008-00901 is presented. The orbital period is improved to 0.28948(11) days. Photometric parameters are determined, as well. The analysis yielded to…

天体物理学 · 物理学 2008-11-26 S. Parimucha , T. Pribulla , M. Vaňko , P. Dubovsky , L. Hambalek

In this work the results of the statistical analysis of the 215 stars with Ha emission in the IC 348 cluster are presented. The sample is completed to R<20.0.The optical radius is about 11 arcmin. The percentage of emission stars increase…

太阳与恒星天体物理 · 物理学 2015-12-29 E. H. Nikoghosyan , A. V. Vardanyan , K. G. Khachatryan

We use photometric and spectroscopic observations of the eclipsing binary E32 in the globular cluster 47 Tuc to derive the masses, radii, and luminosities of the component stars. The system has an orbital period of 40.9 d, a markedly…