MERGING BLACK HOLE BINARIES IN GALACTIC NUCLEI: IMPLICATIONS FOR ADVANCED-LIGO DETECTIONS [PDF]
, 2016 Motivated by the recent detection of gravitational waves from the black hole binary merger GW150914, we study the dynamical evolution of (stellar-mass) black holes in galactic nuclei, where massive star clusters reside. With masses of and sizes of only a
F. Antonini, F. Rasio
semanticscholar +1 more source
Improved Detection Rates for Close Binaries Via Astrometric Observations of Gravitational Microlensing Events [PDF]
, 1999 In addition to constructing a Galactic matter mass function free from the bias induced by the hydrogen-burning limit, gravitational microlensing allows one to construct a mass function which is less affected by the problem of unresolved binaries (Gaudi &
Alard C. +12 more
core +3 more sources
Mass Ejection from the Symbiotic Prototype Z and During its 2006 Outburst
Open Astronomy, 2012 High-resolution spectroscopic observations in the region of the Balmer Hα and Hγ lines of the symbiotic binary Z And were performed during its major eruption in 2006.
Tomov N. A. +2 more
doaj +1 more source
Symbiotic Nova PU Vul - 33 Years of Observations
Open Astronomy, 2012 We present UBVRI light curves of the symbiotic nova PU Vul after its outburst in 1978. Three observed eclipses of the hot component by the cool one were used to determine the ephemeris of the binary system as JD (Min I) = 2444550(15) + 4897(10) × E days.
Shugarov S., Chochol D., Kolotilov E.
doaj +1 more source
Photometric Activity of the Symbiotic Star CH Cyg During 2008–2011
Open Astronomy, 2012 We present results of UBVRC observations of the symbiotic star CH Cyg before and after optical and X-ray bursts in 2009 at various timescales. Rapid variability was found only during a strong burst (U ~ 9.5 mag) in 2009 October, while during the low ...
Shugarov S. +4 more
doaj +1 more source
Optical Observations with Milliarcsecond Resolution of Stars, Their Environments and Companions [PDF]
Journal of Astronomy and Space Sciences, 2012 Observations with milliarsecond resolution using the Navy Optical Interferometer have been obtained for a number of stellar systems which include high-mass binaries, eclipsing binaries, and radio stars.
Jason J. Sanborn, Robert T. Zavala
doaj +1 more source
Beyond binaries and before becoming: Reconsidering resistance in UK higher education
PRISM, 2023 Drawing from the tensions within non-representational and human practice perspectives on affect, this paper continues the task of re-conceptualising academic-level resistance in the context of UK higher education. Such re-conceptualisation is underpinned
Mollie Baker
doaj +1 more source
PHYSICS OF ECLIPSING BINARIES. II. TOWARD THE INCREASED MODEL FIDELITY [PDF]
, 2016 The precision of photometric and spectroscopic observations has been systematically improved in the last decade, mostly thanks to space-borne photometric missions and ground-based spectrographs dedicated to finding exoplanets.
A. Prvsa +8 more
semanticscholar +1 more source
Twins Among the Low Mass Spectroscopic Binaries
, 2008 We report an analysis of twins of spectral types F or later in the 9th Catalog of Spectroscopic Binaries (SB9). Twins, the components of binaries with mass ratio within 2% of 1.0, are found among the binaries with primaries of F and G spectral type. They
Artymowicz +11 more
core +1 more source
Collisional Hardening of Compact Binaries in Globular Clusters [PDF]
, 2006 We consider essential mechanisms for orbit-shrinkage or "hardening" of compact binaries in globular clusters to the point of Roche-lobe contact and X-ray emission phase, focussing on the process of collisional hardening due to encounters between binaries
Angelini +30 more
core +3 more sources