Results 31 to 40 of about 5,074,994 (301)

The GALAH survey: multiple stars and our Galaxy [PDF]

, 2020
Context. Binary stellar systems form a large fraction of the Galaxy’s stars. They are useful as laboratories for studying the physical processes taking place within stars, and must be correctly taken into account when observations of stars are used to ...
Kos, J.,, Ting, Y.-S., S. Sharma, Traven, G., D'Orazi, Valentina, K. Lind, Lewis, G.,, Merle, Thibault, Church, R.,, Traven, Gregor, Simpson, Jeffrey, Sharma, Sanjib, Merle, T.,, Sharma, S.,, Simpson, J.,, Munari, U., V. D’Orazi, Lewis, G., Lin, J., Stello, Dennis, K. Čotar, Zwitter, T.,, T. Merle, R. Church, Lind, Karin,, M. Asplund, Van der Swaelmen, M.,, K. Freeman, R. A. Wittenmyer, Bland-Hawthorn, J.,, Martell, S.,, Bland-Hawthorn, Joss, C. Sahlholdt, S. Buder, Asplund, M., A. Casey, Asplund, M.,, Zucker, Danièle, Martell, S., Sahlholdt, C.,, Van Der Swaelmen, M., Buder, S.,, Casey, A.,, Buder, S., Casey, Andrew, Wittenmyer, Robert R.A., Kos, Janez, D'Orazi, V., Munari, U.,, Cotar, K., D'Orazi, V,, Cotar, K.,, Van Der Swaelmen, Mathieu, Freeman, K.,, Sahlholdt, C., Zucker, D.,, D. Stello, Feltzing, S., Buder, Sven, De Silva, Gayandhi, Y.-S. Ting, U. Munari, Freeman, Kenneth, Cotar, Klemen, S. Martell, Wittenmyer, R. A., Feltzing, Sofia, Zwitter, T., Stello, D., Casey, A., Simpson, J., De Silva, G.,, Church, Ross R.P., T. Zwitter, Munari, Ulisse, S. Feltzing, Ting, Y-S,, Lind, Karin, J. Lin, J. Kos, Asplund, Martin, G. Traven, Sahlholdt, Christian Lundsgaard C., Lin, J.,, Ting, Yuansen Y.S., Feltzing, S.,, Kos, J., G. Lewis, Freeman, K., Sharma, S., Bland-Hawthorn, J., M. Van der Swaelmen, De Silva, G., Zucker, D., Ting, Y. S., Lind, K., Ting, Y. -S., VAN DER SWAELMEN, Mathieu Benoit Jean, Merle, T., Wittenmyer, R. A.,, Church, R., J. Bland-Hawthorn, Lin, Jane, Traven, G.,, G. De Silva, Zwitter, Tomaž, J. Simpson, Stello, D.,, Martell, Sarah, D. Zucker, Lewis, Geraint   +110 more
core   +1 more source

Statistics Of Multiple Stars [PDF]

International Astronomical Union Colloquium, 2004
AbstractThe statistics of stellar systems of multiplicity three and higher is reviewed. They are frequent, 0.15−0.25 of all stellar systems. Some 700 multiples are expected among the 3383 stars of spectral type F, G, and K within 50 pc, while only 76 of them are actually known.
openaire   +1 more source

CCD Photometry Using Multiple Comparison Stars [PDF]

Journal of Astronomy and Space Sciences, 2004
The accuracy of CCD observations obtained at the Korean 1.8 m telescope has been studied. Seventeen comparison stars in the vicinity of the cataclysmic variable BG CMi have been measured.
Yonggi Kim, Ivan L. Andronov, Young-Beom Jeon   +2 more
doaj   +1 more source

A CONGRUENCE BETWEEN SYMMETRIC MULTIPLE ZETA-STAR VALUES AND MULTIPLE ZETA-STAR VALUES

Kyushu Journal of Mathematics, 2021
The authors studied on some congruence relations among symmetric multiple zeta functions, called symmetric multiple zeta-star values and multiple zeta-star values. They showed a congruence between symmetric multiple zeta-star values and multiple zeta-star values.
FUJITA, Kento, KOMORI, Yasushi
openaire   +3 more sources

Radial-velocity measurements of subdwarf B stars [PDF]

, 2011
Subdwarf B (sdB) stars are hot, subluminous stars which are thought to be core-helium burning with thin hydrogen envelopes. The mechanism by which these stars lose their envelopes has been controversial, but it has been argued that binary star ...
Copperwheat, CM, Maxted, P. F. L., Morales-Rueda, L., Morales-Rueda, L, Heber, U, L. Morales-Rueda, U. Heber, Copperwheat, C. M., Heber, U., C. M. Copperwheat, T. R. Marsh, Marsh, TR, Maxted, PFL, Marsh, T. R., P. F. L. Maxted   +14 more
core   +1 more source

A New Catalog of Am-type Chemically Peculiar Stars Based on LAMOST

The Astrophysical Journal Supplement Series, 2023
A total of about 21,600 Am candidates were detected with the MKCLASS code based on the low-resolution spectra of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope Data Releases 8 (v1.0), 9 (v0), and 10 (v0), which greatly expands the database
Xiao-man Tian, Zhi-hua Wang, Li-ying Zhu, Xiao-Ling Yang   +3 more
doaj   +1 more source

Prüfer $\star$--multiplication domains and $\star$--coherence

, 2006
The purpose of this paper is to deepen the study of the Prüfer $\star$--multiplication domains, where $\star$ is a semistar operation. For this reason, in Section 2, we introduce the $\star$--domains, as a natural extension of the $v$--domains, where $v$ is the classical Artin's divisorial operation. We investigate their close relation with the Prüfer $
Fontana, Marco, Picozza, Giampaolo
openaire   +2 more sources

RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey [PDF]

, 2015
This publication was made possible by NPRP grant # X-019-1-006 from the Qatar National Research Fund (a member of Qatar Foundation). AAF is grateful to DGAPA-UNAM for grant number IN104612.We used the light curve archive of the Qatar Exoplanet Survey to ...
Bramich, Daniel Martyn, Cameron, Andrew Collier, Arellano Ferro, A., Horne, Keith Douglas, West, R. G., Alsubai, Khalid Abdulla T, Pollacco, D., Parley, Neil   +7 more
core   +1 more source

Investigation of a W UMa-type contact binary GZ And in a physical triple system

Frontiers in Astronomy and Space Sciences
GZ And is a variable star within the visually observed multiple-star system ADS 1693. Recent observations have yielded new light curves for GZ And, obtained using the Xinglong 85-cm telescope and the Transiting Exoplanet Survey Satellite (TESS) satellite.
Lin-Qiao Jiang, Lin-Qiao Jiang, Lin-Qiao Jiang, Jie Zheng   +3 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source