Results 161 to 170 of about 399,477 (315)

The Morphological Origin of Dwarf Galaxies [PDF]

EAS Publications Series, 2011
13 pages, 5 figures, to appear in the proceedings of the CRAL conference, Lyon, June 2010, "A Universe of Dwarf Galaxies", eds. Philippe Prugniel & Mina Koleva; EDP Sciences in the European Astronomical Society Publications Series. (invited talk)
openaire   +4 more sources

A Search for Faint Resolved Galaxies Beyond the Milky Way in DES Year 6: A New Faint, Diffuse Dwarf Satellite of NGC 55

The Astrophysical Journal
We report results from a systematic wide-area search for faint dwarf galaxies at heliocentric distances from 0.3 to 2 Mpc using the full 6 yr of data from the Dark Energy Survey (DES).
M. McNanna, K. Bechtol, S. Mau, E. O. Nadler, J. Medoff, A. Drlica-Wagner, W. Cerny, D. Crnojević, B. Mutlu-Pakdıl, A. K. Vivas, A. B. Pace, J. L. Carlin, M. L. M. Collins, P. S. Ferguson, D. Martínez-Delgado, C. E. Martínez-Vázquez, N. E. D. Noel, A. H. Riley, D. J. Sand, A. Smercina, E. Tollerud, R. H. Wechsler, T. M. C. Abbott, M. Aguena, O. Alves, D. Bacon, C. R. Bom, D. Brooks, D. L. Burke, J. A. Carballo-Bello, A. Carnero Rosell, J. Carretero, L. N. da Costa, T. M. Davis, J. De Vicente, H. T. Diehl, P. Doel, I. Ferrero, J. Frieman, G. Giannini, D. Gruen, G. Gutierrez, R. A. Gruendl, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, J. L. Marshall, J. Mena-Fernández, R. Miquel, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, J. D. Sakowska, E. Sanchez, D. Sanchez Cid, B. Santiago, I. Sevilla-Noarbe, M. Smith, G. S. Stringfellow, E. Suchyta, M. E. C. Swanson, G. Tarle, N. Weaverdyck, P. Wiseman, DES & DELVE Collaboration   +66 more
doaj   +1 more source

The curious case of the companion: evidence for cold accretion onto a dwarf satellite near the isolated elliptical NGC 7796

, 2018
The isolated elliptical (IE) NGC 7796 is accompanied by an interesting early-type dwarf galaxy, named NGC7796-DW1. It exhibits a tidal tail, very boxy isophotes, and multiple nuclei or regions (A, B, and C) that are bluer than the bulk population of the ...
Gómez, M., Hilker, M., Lane, R., Puzia, T. H., Richtler, T., Salinas, R., Voggel, K.   +6 more
core   +1 more source

Homogeneous Photometry VI: Variable Stars in the Leo I Dwarf Spheroidal Galaxy

, 2014
We have characterized the pulsation properties of 164 candidate RR Lyrae variables (RRLs) and 55 candidate Anomalous and/or short-period Cepheids in Leo I dwarf spheroidal galaxy.
Bernard, Edouard J., Bono, Giuseppe, Ferraro, Ivan, Fiorentino, Giuliana, Gallart, Carme, Iannicola, Giacinto, Monelli, Matteo, Stetson, Peter B.   +7 more
core   +1 more source

Globular Clusters in Dwarf Galaxies [PDF]

The Astronomical Journal, 2006
Data are presently available on the luminosities and half-light radii of 101 globular clusters associated with low-luminosity parent galaxies. The luminosity distribution of globulars embedded in dwarf galaxies having $M_{v} > -16$ is found to differ dramatically from that for globular clusters surrounding giant host galaxies with $M_{v} < -16 ...
openaire   +4 more sources

Forecasts for Galaxy Formation and Dark Matter Constraints from Dwarf Galaxy Surveys

The Astrophysical Journal
The abundance of faint dwarf galaxies is determined by the underlying population of low-mass dark matter (DM) halos and the efficiency of galaxy formation in these systems. Here, we quantify potential galaxy formation and DM constraints from future dwarf
Ethan O. Nadler, Vera Gluscevic, Trey Driskell, Risa H. Wechsler, Leonidas A. Moustakas, Andrew Benson, Yao-Yuan Mao   +6 more
doaj   +1 more source

The early-type dwarf galaxy population of the Centaurus cluster

, 2009
We present a photometric study of the early-type dwarf galaxy population of the Centaurus cluster, aiming at investigating the galaxy luminosity function (LF) and galaxy scaling relations down to the regime of galaxies with M_V~-10 mag. On deep VLT/FORS1
Abell, Adami, Bautz, Bekki, Bender, Bender, Bertin, Binggeli, Boselli, Chiboucas, Chiboucas, Chilingarian, Choi, Churazov, Côté, da Costa, da Costa, Dabringhausen, de Vaucouleurs, Drinkwater, Faber, Ferrarese, Freedman, Fukugita, Furusho, Gallagher, Gallazzi, Gavazzi, Gilmore, Graham, Graham, Graham, Hilker, Hilker, I. Misgeld, Infante, Janz, Jenkins, Jerjen, Klypin, Kodama, Kormendy, Kormendy, Lisker, Lucey, M. Hilker, Mahdavi, Martin, Martin, McConnachie, McConnachie, Mei, Mieske, Mieske, Mieske, Mieske, Mieske, Misgeld, Moore, Peng, Penny, Press, Pritchet, Rines, S. Mieske, Schechter, Schlegel, Secker, Stein, Tonry, Trentham, Trentham, Visvanathan, Young, Zucker   +74 more
core   +1 more source

The Ecosystem Of Dwarf Galaxies

, 2017
It remains unclear what physical mechanisms are triggering starbursts in low-mass galaxies and what is the effect of stellar feedback in their shallow potential wells. We study a sample of 18 nearby starburst dwarfs using multi-wavelength data, including interferometric HI observations, HST imaging, and MUSE integral-field spectroscopy.
openaire   +1 more source

Birth, life and survival of Tidal Dwarf Galaxies

, 2011
Advances on the formation and survival of the so-called Tidal Dwarf Galaxies (TDGs) are reviewed. The understanding on how objects of the mass of dwarf galaxies may form in debris of galactic collisions has recently benefited from the coupling of multi ...
BG Elmegreen, BJ Smith, D Pfenniger, F Bournaud, F Bournaud, F Bournaud, F Bournaud, F Renaud, G Gentile, IA Grenier, J Braine, JE Barnes, JE Hibbard, JI Read, KA Knierman, M Boquien, M Fellhauer, M Metz, M Milgrom, M Wetzstein, PA Duc, PA Duc, R Teyssier, S. Torres-Flores, T Okazaki, Y Yang   +25 more
core   +1 more source

Intermediate Mass Ratio Inspirals in Milky Way Galaxies

The Astrophysical Journal
A consequence of a nonzero occupation fraction of massive black holes (MBHs) in dwarf galaxies is that these MBHs can become residents of larger galaxy halos via hierarchical merging and tidal stripping.
Jillian Bellovary, Yuantong Luo, Thomas R. Quinn, Ferah Munshi, Michael Tremmel, James Wadsley   +5 more
doaj   +1 more source