Results 41 to 50 of about 2,766,286 (295)

Tidally trapped pulsations in a close binary star system discovered by TESS [PDF]

, 2020
It has long been suspected that tidal forces in close binary stars could modify the orientation of the pulsation axis of the constituent stars. Such stars have been searched for, but until now never detected.
Fuller, J., Kurtz, Donald Wayne, Rappaport, S.A., Rappaport, S. A., Alicavus, F. Kahraman, Chowdhury, S., Sowicka, P., Vanderburg, A., Jones, D., Kurtz, D. W., Jacobs, T. L., Saio, H., Streamer, M., Guo, Z., Et, Al, Murphy, S. J., Handler, G., Gagliano, R., Alicavus, Filiz, Rappaport, Saul A, Murphy, Simon, Kurtz, D W, Streamer, Margaret, Alicavus, F Kahraman, Saio, H, Jones, D, Handler, G   +26 more
core   +1 more source

CW Cas: A Solar-type Contact Binary System with an Unseen Third Companion in a Hierarchical Quadruple System

The Astrophysical Journal
We present a comprehensive multiband photometric and spectroscopic study of the G-type binary CW Cas. Analysis of its double-lined spectroscopic radial velocity curves yields a reliable mass ratio of q  = 1.88(9).
Azizbek Matekov, Liying Zhu, Linjia Li, Fangbin Meng, Nianping Liu, ShengBang Qian, Ergang Zhao, Mikhail Kovalev, Jiangjiao Wang, Yufei Chen, Aktam Hafizov, Soonthornthum Boonrucksar, Somsawat Rattanasoon, Shuhrat Ehgamberdiev   +13 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

The A Supergiant Eclipsing Binary BM Cas: An Evolved, Intermediate Mass System

The Astronomical Journal
The evolutionary state of the 198 day eclipsing binary BM Cas is examined using spectra that cover five orbital cycles. Radial velocities measured from Si II 6347 and Si II 6371 track the motion of the primary, and a mass function is found that is ...
T. J. Davidge
doaj   +1 more source

Microlensing of close binary stars [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
The gravity due to a multiple-mass system has a remarkable gravitational effect: the extreme magnification of background light sources along extended so-called caustic lines. This property has been the channel for some remarkable astrophysical discoveries over the past decade, including the detection and characterisation of extra-solar planets, the ...
openaire   +2 more sources

Gas flow in Close Binary Star Systems [PDF]

, 2006
We first present a summary of our numerical work on accretion discs in close binary systems. Our recent studies on numerical simulations of the surface flow on the mass-losing star in a close binary star is then reviewed.
Oka, K., Matsuda, T., Hachisu, I., Boffin, H.   +3 more
openaire   +2 more sources

Radial Velocity Studies of Close Binary Stars. IX. [PDF]

The Astronomical Journal, 2004
17+ pages, 2 tables, 4 ...
Pych, Wojtek, Rucinski, Slavek M., DeBond, Heide, Thomson, J. R., Capobianco, Christopher C., Blake, R. Melvin, Ogłoza, Waldemar, Stachowski, Greg, Rogoziecki, Piotr, Ligeza, Piotr, Gazeas, Kosmas   +10 more
openaire   +3 more sources

Circulating microRNA signatures of cachexia and cancer in Canis familiaris as a comparative oncology model for human disease

Molecular Oncology, EarlyView.
Circulating microRNAs as biomarkers of cachexia and sex‐specific cancer in senior dogs. In 25 client‐owned dogs, four circulating miRNAs (miR‐15a, miR‐15b, miR‐16, miR‐140) were downregulated in cachexia, with miR‐16 the strongest individual biomarker (AUC = 0.899).
Soon‐Seok Park, Kyongman An, Gyeonghwa Kim, Soo‐Nyun Choi, Hong‐Ki Lee, Keun Hur, Kyu‐Shik Jeong   +6 more
wiley   +1 more source

TIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days

The Astrophysical Journal
We have discovered a triply eclipsing triple-star system, TIC 290061484, with the shortest known outer period, P _out , of only 24.5 days. This “eclipses” the previous record set by λ Tauri at 33.02 days, which held for 68 yr.
V. B. Kostov, S. A. Rappaport, T. Borkovits, B. P. Powell, R. Gagliano, M. Omohundro, I. B. Bíró, M. Moe, S. B. Howell, T. Mitnyan, C. A. Clark, M. H. Kristiansen, I. A. Terentev, H. M. Schwengeler, A. Pál, A. Vanderburg   +15 more
doaj   +1 more source

CEACAM1 participation in breast cancer progression

Molecular Oncology, EarlyView.
In invasive breast cancer (BC), CEACAM1 shifts from an apical to a uniform membranous/cytoplasmic pattern, or is lost, as tumors dedifferentiate, inversely tracking the Ki‐67 proliferative index. In MCF‐7 cells, only CEACAM1‐4L suppresses proliferation, repressing cell cycle and growth factor genes.
Mykola Lyndin, Irina Kube‐Golovin, Anatolii Romaniuk, Gunther Wennemuth   +3 more
wiley   +1 more source