Results 71 to 80 of about 224,275 (141)

Devouring the Milky Way Satellites: Modeling Dwarf Galaxies with Galacticus

The Astrophysical Journal, 2023
Dwarf galaxies are ubiquitous throughout the universe and are extremely sensitive to various forms of internal and external feedback. Over the last two decades, the census of dwarf galaxies in the Local Group and beyond has increased markedly.
Sachi Weerasooriya, Mia Sauda Bovill, Andrew Benson, Alexi M. Musick, Massimo Ricotti   +4 more
doaj   +1 more source

The Luminosity Function and Initial Mass Function in the Galactic Bulge [PDF]

The Astronomical Journal, 1998
We present deep photometry obtained with the Hubble Space Telescope (HST) in a field in Baade's Window in the Galactic bulge. We derive a luminosity function down to I ~ 24.3, or V ~ 27.5, corresponding to M ~ 0.3 Msun. The luminosity function from the turnoff down to this level appears remarkably similar to that observed in the solar neighborhood.
Holtzman, Jon A., Watson, Alan M., Baum, William A., Grillmair, Carl J., Groth, Edward J., Light, Robert M., Lynds, Roger, O'Neil, Earl J., Jr.   +7 more
openaire   +5 more sources

The Formation Rate and Luminosity Function of Fast Radio Bursts

The Astrophysical Journal Letters
Fast radio bursts (FRBs) are millisecond-duration flashes with unknown origins. Their formation rate is crucial for unveiling physical origins. However, the luminosity and formation rate are degenerate when directly fitting the redshift distribution of ...
J. H. Chen, X. D. Jia, X. F. Dong, F. Y. Wang   +3 more
doaj   +1 more source

Impacts of Luminosity in the Cab at Night on the Dynamic Distance of Visual Cognition

Advances in Mechanical Engineering, 2014
Suddenly encountering light sources at night will reduce drivers' dynamic distance of visual cognition. In order to investigate the law of quantitative changes of the visual recognition distance under the conditions of different speeds and different ...
Weihua Zhao, Wei Han, Ying Wen, Dongmei Zhang, Haoxue Liu   +4 more
doaj   +1 more source

The Hot Main Kuiper Belt Size Distribution from OSSOS

The Astrophysical Journal Letters, 2023
Using the absolute detection calibration and abundant detections of the Outer Solar System Origins Survey project, we provide population measurements for the main Kuiper Belt.
Jean-Marc Petit, Brett Gladman, J. J. Kavelaars, Michele T. Bannister, Mike Alexandersen, Kathryn Volk, Ying-Tung Chen   +6 more
doaj   +1 more source

The Non-Parametric Model for Linking Galaxy Luminosity with Halo/Subhalo Mass

, 2005
We present a non-parametric, empirically based, model for associating galaxy luminosities with halo/subhalo masses, based on a self-consistent treatment of subhalo mass loss and the subhalo mass function.
A. Vale, Abazajian, Babul, Bahcall, Bahcall, Bailin, Bell, Benson, Benson, Benson, Benson, Berlind, Berlind, Blanton, Blanton, Bryan, Bullock, Bullock, Cole, Cooray, Cooray, Cooray, Cooray, Cooray, Croton, De Lucia, Dekel, Dekel, Dekel, Eisenstein, Eke, Eke, Fukugita, Gao, Governato, Hayashi, Hoekstra, J. P. Ostriker, Jarrett, Kauffmann, Kauffmann, Kauffmann, Kauffmann, Kochanek, Kochanek, Kravtsov, Libeskind, Lin, Lin, Magliocchetti, Marinoni, Mateo, Meza, Mobasher, Moore, Nagamine, Norberg, Oguri, Peacock, Pearce, Popesso, Sanchez, Schechter, Seljak, Shaw, Sheth, Sheth, Somerville, Somerville, Spergel, Tasitsiomi, Tegmark, Thoul, Tinker, Trentham, Trentham, Vale, van den Bosch, van den Bosch, van den Bosch, van den Bosch, Wechsler, Weller, White, Yang, Yang, Yang, Yang, Yoshikawa, Zentner, Zheng, Zheng   +91 more
core   +1 more source

A Derivation of the Luminosity Function of the Kuiper Belt from a Broken Power-Law Size Distribution

, 2008
We have derived a model of the Kuiper belt luminosity function exhibited by a broken power-law size distribution. This model allows direct comparison of the observed luminosity function to the underlying size distribution.
Allen, Bernstein, Bernstein, Bottke, Chiang, Dohnanyi, Fraser, Fuentes, Gladman, Gladman, Gladman, Grundy, Hayashi, J.J. Kavelaars, Jewitt, Kavelaars, Kenyon, Kenyon, Kenyon, Levison, Loredo, Malhotra, O'Brien, Pan, Petit, Safronov, Thommes, Trujillo, Trujillo, Wesley C. Fraser   +29 more
core   +1 more source

Pulsar Luminosity Function

, 2002
12 pages, 9 figures, submitted to A& ...
Guseinov, O. H., Yazgan, E., Ozkan, S., Tagieva, S.   +3 more
openaire   +2 more sources

On the Luminosity Function of Early--Type Galaxies

, 1994
In a recent paper Loveday et al. (1992) have presented new results on the luminosity function for a sample of galaxies with $b_J \le 17.15$. After having morphologically classified each galaxy (early--type, late--type, merged or uncertain), they have ...
Pozzetti, Lucia, Zamorani, Giovanni, Zucca, Elena   +2 more
core   +1 more source

The Globular Cluster Luminosity Function [PDF]

, 2006
The main aspects of the globular cluster luminosity function needing to be explained by a general theory of cluster formation are reviewed, and the importance of simultaneously understanding globular cluster systematics (the fundamental plane) within such a theory is pointed out.
openaire   +3 more sources