Zobrazeno 51 - 60
of 980
pro vyhledávání: '"Chatterjee, Sourav"'
Many critical policy decisions, from strategic investments to the allocation of humanitarian aid, rely on data about the geographic distribution of wealth and poverty. Yet many poverty maps are out of date or exist only at very coarse levels of granu
Externí odkaz:
http://arxiv.org/abs/2104.07761
Autor:
Chatterjee, Sourav
Height functions of growing random surfaces are often conjectured to be superconcentrated, meaning that their variances grow sublinearly in time. This article introduces a new concept, called subroughness, meaning that there exist two distinct points
Externí odkaz:
http://arxiv.org/abs/2103.09199
Autor:
Rui, Nicholas Z., Weatherford, Newlin, Kremer, Kyle, Chatterjee, Sourav, Fragione, Giacomo, Rasio, Frederic A., Rodriguez, Carl L., Ye, Claire S.
Recently, \citet{vitral2021does} detected a central concentration of dark objects in the core-collapsed globular cluster NGC 6397, which could be interpreted as a subcluster of stellar-mass black holes. However, it is well established theoretically t
Externí odkaz:
http://arxiv.org/abs/2103.06273
Autor:
Rui, Nicholas Z., Kremer, Kyle, Weatherford, Newlin C., Chatterjee, Sourav, Rasio, Frederic A., Rodriguez, Carl L., Ye, Claire S.
As ancient, gravitationally bound stellar populations, globular clusters are abundant, vibrant laboratories characterized by high frequencies of dynamical interactions coupled to complex stellar evolution. Using surface brightness and velocity disper
Externí odkaz:
http://arxiv.org/abs/2103.05033
Autor:
Chatterjee, Sourav
Consider a deterministically growing surface of any dimension, where the growth at a point is an arbitrary nonlinear function of the heights at that point and its neighboring points. Assuming that this nonlinear function is monotone, invariant under
Externí odkaz:
http://arxiv.org/abs/2102.13131
Autor:
Rodriguez, Carl L., Kremer, Kyle, Chatterjee, Sourav, Fragione, Giacomo, Loeb, Abraham, Rasio, Frederic A., Weatherford, Newlin C., Ye, Claire S.
Publikováno v:
Res. Notes AAS 5 19 (2021)
Since the first signal in 2015, the gravitational-wave detections of merging binary black holes (BBHs) by the LIGO and Virgo collaborations (LVC) have completely transformed our understanding of the lives and deaths of compact object binaries, and ha
Externí odkaz:
http://arxiv.org/abs/2101.07793
Autor:
Weatherford, Newlin C., Fragione, Giacomo, Kremer, Kyle, Chatterjee, Sourav, Ye, Claire S., Rodriguez, Carl L., Rasio, Frederic A.
Recent observations of globular clusters (GCs) provide evidence that the stellar initial mass function (IMF) may not be universal, suggesting specifically that the IMF grows increasingly top-heavy with decreasing metallicity and increasing gas densit
Externí odkaz:
http://arxiv.org/abs/2101.02217
Autor:
González, Elena, Kremer, Kyle, Chatterjee, Sourav, Fragione, Giacomo, Rodriguez, Carl L., Weatherford, Newlin C., Ye, Claire S., Rasio, Frederic A.
Black holes formed in dense star clusters, where dynamical interactions are frequent, may have fundamentally different properties than those formed through isolated stellar evolution. Theoretical models for single star evolution predict a gap in the
Externí odkaz:
http://arxiv.org/abs/2012.10497
Autor:
Kremer, Kyle, Lu, Wenbin, Piro, Anthony L., Chatterjee, Sourav, Rasio, Frederic A., Ye, Claire S.
Observational evidence suggests that the majority of stars may have been born in stellar clusters or associations. Within these dense environments, dynamical interactions lead to high rates of close stellar encounters. A variety of recent observation
Externí odkaz:
http://arxiv.org/abs/2012.02796
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 508 (2021), 5064-5073
Gravitational Wave (GW) astronomy promises to observe different kinds of astrophysical sources. Here we explore the possibility of detection of GWs from hyperbolic interactions of compact stars with ground-based interferometric detectors. It is belie
Externí odkaz:
http://arxiv.org/abs/2010.00916