Results 1 to 10 of about 86 (85)
Mass Ratio Distribution of Hierarchical Triple Systems from the LAMOST-MRS Survey
The Astrophysical Journal, 2023 Hierarchical triple-star systems consists of three components organized into an inner binary ( M _1 , M _2 ) and a more distant outer tertiary ( M _3 ) star.
Tongyu He +5 more
doaj +1 more source
The Astronomical Journal, 2023 While secondary mass inferences based on single-lined spectroscopic binary (SB1) solutions are subject to $\sin i$ degeneracies, this degeneracy can be lifted through the observations of eclipses.
Stephen P. Schmidt +20 more
doaj +1 more source
The Directly Imaged Exoplanet Host Star 51 Eridani is a Gamma Doradus Pulsator
The Astrophysical Journal, 2022 51 Eri is well known for hosting a directly imaged giant planet and for its membership to the β Pictoris moving group. Using 2 minute cadence photometry from the Transiting Exoplanet Survey Satellite (TESS), we detect multiperiodic variability in 51 Eri ...
Aldo G. Sepulveda +5 more
doaj +1 more source
Polar Circumtriple Planets and Disks Can Only Form Close to a Triple Star
The Astrophysical Journal Letters, 2023 Observations of protoplanetary disks around binary and triple star systems suggest that misalignments between the orbital plane of the stars and the disks are common.
Stephen Lepp +2 more
doaj +1 more source
Triple Evolution Pathways to Black Hole Low-mass X-Ray Binaries: Insights from V404 Cygni
The Astrophysical JournalA recent discovery shows that V404 Cygni, a prototypical black hole low-mass X-ray binary (BH-LMXB) is a hierarchical triple: the BH and donor star are orbited by a 1.2 M _⊙ tertiary at a distance of at least 3500 au.
Cheyanne Shariat +7 more
doaj +1 more source
Explicit 3‐colorings for Exponential Graphs
Journal of Graph Theory, EarlyView.ABSTRACT In 1985, El‐Zahar and Sauer showed that the chromatic number of the direct product of two 4‐chromatic graphs is 4, establishing a nontrivial case of Hedetniemi's conjecture, which has since been refuted in general. Their proof uses the concept of an exponential graph, showing that if a graph H $H$ has no proper 3‐coloring, then the exponential
Adrien Argento +2 more
wiley +1 more source
Decomposing venture evaluation: Learning about belief formation
Strategic Entrepreneurship Journal, EarlyView.Abstract Research Summary Evaluating early‐stage ventures is difficult because observable signals of future quality are weak and noisy. How closely are evaluators' assessments related to venture quality, and do their subjective judgments add to the information already available about a venture?
Thomas Åstebro +2 more
wiley +1 more source
The PSR J0435+3233 Triple System
The Astrophysical Journal LettersThe detailed evolution of triple star systems is complicated and poorly known. Using archived optical/infrared and gamma-ray data, we identified the pulsar PSR J0435+3233 as a gamma-ray pulsar in a hierarchical triple system, with a helium white dwarf ...
Z. L. Yang +11 more
doaj +1 more source
CPT: Pharmacometrics &Systems Pharmacology, Volume 15, Issue 9, September 2026.ABSTRACT Drug Combinations offer increased therapeutic efficacy and reduced toxicity compared with single agents. Understanding a drug combination's mechanisms of action (MoA) can provide important insights into therapeutic efficacy. The MoA of many FDA‐approved drugs, however, often remains unclear.
Rui‐Sheng Wang +5 more
wiley +1 more source
Orbital Modulation Induced by a Third Component in the Overcontact Binary V0554 Dra
The Astrophysical JournalWe present the first comprehensive photometric and spectroscopic analysis of the overcontact eclipsing binary V0554 Dra. By simultaneously modeling multiband light curves and radial velocity data using the Wilson–Devinney code, we determine that the ...
Mu-Lan Deng +10 more
doaj +1 more source