Zobrazeno 1 - 10
of 60
pro vyhledávání: '"GaBany, R. Jay"'
Autor:
Pearson, Sarah, Privon, George C., Besla, Gurtina, Putman, Mary E., Martínez-Delgado, David, Johnston, Kathryn V., Gabany, R. Jay, Patton, David R., Kallivayalil, Nitya
Publikováno v:
MNRAS, 480, 3, 2018, p: 3069
Discoveries of low mass galaxy pairs and groups are increasing. Studies indicate that dwarf galaxy pairs are gas rich in the field and exhibit elevated star formation rates, suggestive of interactions. Lacking are dynamical models of observed dwarf g
Externí odkaz:
http://arxiv.org/abs/1807.03791
Autor:
Laine, Seppo, Grillmair, Carl J., Capak, Peter, Arendt, Richard G., Romanowsky, Aaron J., Martinez-Delgado, David, Ashby, Matthew L. N., Davies, James E., Majewski, Stephen R., Brodie, Jean P., GaBany, R. Jay, Arnold, Jacob A.
Stellar streams have become central to studies of the interaction histories of nearby galaxies. To characterize the most prominent parts of the stellar stream around the well-known nearby (d = 17 Mpc) edge-on disk galaxy NGC 5907, we have obtained an
Externí odkaz:
http://arxiv.org/abs/1607.03554
To place the highly substructured stellar halos of the Milky Way and M31 in a larger context of hierarchical galaxy formation, it is necessary to understand the prevalence and properties of tidal substructure around external galaxies. This chapter de
Externí odkaz:
http://arxiv.org/abs/1603.04656
Autor:
Romanowsky, Aaron J., Martinez-Delgado, D., Martin, Nicolas F., Morales, Gustavo, Jennings, Zachary G., GaBany, R. Jay, Brodie, Jean P., Grebel, Eva K., Schedler, Johannes, Sidonio, Michael
We report the discovery of NGC 253-dw2, a dwarf spheroidal (dSph) galaxy candidate undergoing tidal disruption around a nearby spiral galaxy, NGC 253 in the Sculptor group: the first such event identified beyond the Local Group. The dwarf was found u
Externí odkaz:
http://arxiv.org/abs/1512.03815
Autor:
Martinez-Delgado, David, D'Onghia, Elena, Chonis, Taylor S., Beaton, Rachael L., Teuwen, Karel, GaBany, R. Jay, Grebel, Eva K., Morales, Gustavo
We report the discovery of a giant stellar tidal stream in the halo of NGC 4631, a nearby edge-on spiral galaxy interacting with the spiral NGC 4656, in deep images taken with a 40-cm aperture robotic telescope. The stream has two components: a bridg
Externí odkaz:
http://arxiv.org/abs/1410.6368
Autor:
Foster, Caroline, Lux, Hanni, Romanowsky, Aaron J., Martinez-Delgado, David, Zibetti, Stefano, Arnold, Jacob A., Brodie, Jean P., Ciardullo, Robin, GaBany, R. Jay, Merrifield, Michael R., Singh, Navtej, Strader, Jay
We study the dynamics of faint stellar substructures around the Umbrella Galaxy, NGC 4651, which hosts a dramatic system of streams and shells formed through the tidal disruption of a nucleated dwarf elliptical galaxy. We elucidate the basic characte
Externí odkaz:
http://arxiv.org/abs/1406.5511
Autor:
Beaton, Rachael L., Martinez-Delgado, David, D'Onghia, Elena, Zibetti, Stefano, Gabany, R. Jay, Johnson, Kelsey E., Majewski, Steven R., Blanton, Michael, Verbiscer, Anne
We have identified a low surface brightness stellar stream from visual inspection of SDSS imaging for the edge-on, spiral galaxy NGC5387. A blue overdensity was also identified in SDSS coincident with the stream intersection with the NGC5387 disk. Th
Externí odkaz:
http://arxiv.org/abs/1312.0585
Autor:
Chonis, Taylor S., Martinez-Delgado, David, Gabany, R. Jay, Majewski, Steven R., Hill, Gary J., Trujillo, Ignacio
We present surface photometry of a giant, low surface brightness stellar arc in the halo of the nearby spiral galaxy M63 (NGC 5055) that is consistent with being a part of a stellar stream resulting from the disruption of a dwarf satellite galaxy. Us
Externí odkaz:
http://arxiv.org/abs/1207.2115
Autor:
Martinez-Delgado, David, Romanowsky, Aaron J., GaBany, R. Jay, Annibali, Francesca, Arnold, Jacob A., Fliri, Juergen, Zibetti, Stefano, van der Marel, Roeland P., Rix, Hans-Walter, Chonis, Taylor S., Carballo-Bello, Julio A., Aloisi, Alessandra, Maccio, Andrea V., Gallego-Laborda, J., Brodie, Jean P., Merrifield, Michael R.
A candidate diffuse stellar substructure was previously reported in the halo of the nearby dwarf starburst galaxy NGC 4449 by Karachentsev et al. We map and analyze this feature using a unique combination of deep integrated-light images from the Blac
Externí odkaz:
http://arxiv.org/abs/1112.2154
Autor:
Cooper, Andrew P., Martinez-Delgado, David, Helly, John, Frenk, Carlos, Cole, Shaun, Crawford, Ken, Zibetti, Stefano, Carballo-Bello, Julio A., Gabany, R. Jay
We present new deep observations of 'shell' structures in the halo of the nearby elliptical galaxy NGC 7600, alongside a movie of galaxy formation in a cold dark matter universe (available at http://www.virgo.dur.ac.uk/shell-galaxies). The movie, bas
Externí odkaz:
http://arxiv.org/abs/1111.2864