Results 21 to 30 of about 716,854 (348)

STELLAR MASS DEPENDENT DISK DISPERSAL [PDF]

The Astrophysical Journal, 2009
We use published optical spectral and IR excess data from nine young clusters and associations to study the stellar mass dependent dispersal of circumstellar disks. All clusters older than ~3 Myr show a decrease in disk fraction with increasing stellar mass for Solar to higher mass stars.
Kennedy, Grant, Kenyon, Scott J
openaire   +3 more sources

EDGE: The Origin of Scatter in Ultra-faint Dwarf Stellar Masses and Surface Brightnesses [PDF]

Astrophysical Journal, 2019
We demonstrate how the least luminous galaxies in the universe, ultra-faint dwarf galaxies, are sensitive to their dynamical mass at the time of cosmic reionization.
Martin P. Rey, A. Pontzen, O. Agertz, Matthew D A Orkney, J. Read, A. Saintonge, C. Pedersen   +6 more
semanticscholar   +1 more source

THE MASS DISTRIBUTION OF STELLAR-MASS BLACK HOLES [PDF]

The Astrophysical Journal, 2011
We perform a Bayesian analysis of the mass distribution of stellar-mass black holes using the observed masses of 15 low-mass X-ray binary systems undergoing Roche lobe overflow and five high-mass, wind-fed X-ray binary systems. Using Markov Chain Monte Carlo calculations, we model the mass distribution both parametrically---as a power law, exponential,
Farr, Will M., Sravan, Niharika, Cantrell, Andrew G., Kreidberg, Laura, Bailyn, Charles D., Mandel, Ilya, Kalogera, V.   +6 more
openaire   +3 more sources

Resolved and Integrated Stellar Masses in the SDSS-IV/MaNGA Survey. II. Applications of PCA-based Stellar Mass Estimates [PDF]

Astrophysical Journal, 2019
A galaxy’s stellar mass is one of its most fundamental properties, but it remains challenging to measure reliably. With the advent of very large optical spectroscopic surveys, efficient methods that can make use of low signal-to-noise spectra are needed.
Z. Pace, C. Tremonti, Yan-Mei Chen, A. Schaefer, M. Bershady, K. Westfall, M. Boquien, K. Rowlands, B. Andrews, J. Brownstein, N. Drory, D. Wake   +11 more
semanticscholar   +1 more source

Sizes and Stellar Masses of the Little Red Dots Imply Immense Stellar Densities [PDF]

Research Notes of the AAS
The “Little Red Dots” (LRDs) are red and compact galaxies detected in JWST deep fields, mainly in the redshift range z = 4–8. Given their compactness and the inferred stellar masses in the hypothesis that LRDs are starburst galaxies, the implied stellar ...
C. A. Guia, F. Pacucci, D. Kocevski
semanticscholar   +1 more source

The Eclipsing Binaries from the LAMOST Medium-resolution Survey. III. A High-precision Empirical Stellar Mass Library

The Astronomical Journal, 2023
High-precision stellar masses and radii measured directly from binaries can effectively calibrate stellar models. However, such a database containing full spectral types and a large range of metallicity is still not fully established. A continuous effort
Jianping Xiong, Chao Liu, Jiao Li, Jiadong Li, Bo Zhang, Xiaodian Chen, Changqing Luo, Zihuang Cao, Yongheng Zhao   +8 more
doaj   +1 more source

Clustering properties of galaxies selected in stellar mass: Breaking down the link between luminous and dark matter in massive galaxies from z=0 to z=2 [PDF]

, 2010
We present a study on the clustering of a stellar mass selected sample of 18,482 galaxies with stellar masses M*>10^10M(sun) at redshifts 0 ...
Arnaud, Arnouts, Baldry, Balogh, Balogh, Bamford, Bardeen, Bell, Benítez, Berlind, Bertin, Borch, Bouwens, Bower, Bruzual, Bundy, Bundy, Bundy, Busha, Böhm, Böhm, C. J. Conselice, Carroll, Cattaneo, Chabrier, Chiu, Cirasuolo, Cirasuolo, Coil, Coil, Cole, Collister, Conroy, Conroy, Conselice, Conselice, Conselice, Conselice, Conselice, Cowie, Cresswell, Croton, Croton, Croton, Davis, De Lucia, De Lucia, Drory, Drory, Drory, Eke, Faber, Fernández Lorenzo, Fontana, Foucaud, Förster, Gao, Gao, Gonzalez, Groth, Guzzo, Hartley, Hoekstra, Ilbert, K. Bundy, K. P. Lane, Kassin, Kauffmann, Kauffmann, Kitzbichler, Komatsu, Kroupa, Landy, Le, Li, Lin, Magliocchetti, Magliocchetti, Magliocchetti, Mandelbaum, Marchesini, McCracken, McLure, Meneux, Mo, Moore, More, Neistein, Noeske, Norberg, Norberg, O. Almaini, Ouchi, Ouchi, Peebles, Pollo, Pozzetti, Pritchet, Puech, Pérez-González, Pérez-González, Quadri, Quadri, Reddy, Reddy, Roche, S. Foucaud, S. P. Bamford, Sheth, Sheth, Skibba, Skrutskie, Sofue, Somerville, Springel, Springel, Steidel, Swinbank, Thomas, Tinker, Tinker, Tresse, Trujillo, Van, Van, Vikhlinin, W. G. Hartley, Warren, Wechsler, Weinberg, Weiner, Weinmann, Whiley, White, Yang, Yoshida, Zehavi, Zehavi, Zheng, Zheng   +139 more
core   +1 more source

Empirical Relations for the Accurate Estimation of Stellar Masses and Radii [PDF]

Astrophysical Journal Supplement Series, 2018
In this work, we have taken advantage of the most recent accurate stellar characterizations carried out using asteroseismology, eclipsing binaries and interferometry to evaluate a comprehensive set of empirical relations for the estimation of stellar ...
A. Moya, Federico Zuccarino, W. Chaplin, G. Davies   +3 more
semanticscholar   +1 more source

From Starspots to Stellar Coronal Mass Ejections—Revisiting Empirical Stellar Relations [PDF]

The Astrophysical Journal, 2021
Abstract Upcoming missions, including the James Webb Space Telescope, will soon characterize the atmospheres of terrestrial-type exoplanets in habitable zones around cool K- and M-type stars by searching for atmospheric biosignatures. Recent observations suggest that the ionizing radiation and particle environment from active cool planet
Herbst, Konstantin, Papaioannou, Athanasios, Airapetian, Vladimir S., Atri, Dimitra   +3 more
openaire   +2 more sources

Can Protostellar Outflows Set Stellar Masses?

The Astrophysical Journal, 2023
The opening angles of some protostellar outflows appear too narrow to match the expected core–star mass efficiency (SFE) = 0.3–0.5, if the outflow cavity volume traces outflow mass, with a conical shape and a maximum opening angle near 90°.
Philip C. Myers, Michael M. Dunham, Ian W. Stephens   +2 more
doaj   +1 more source