Zobrazeno 1 - 10
of 749
pro vyhledávání: '"Brown, T M"'
Autor:
Savino, A., Weisz, D. R., Skillman, E. D., Dolphin, A., Cole, A. A., Kallivayalil, N., Wetzel, A., Anderson, J., Besla, G., Boylan-Kolchin, M., Brown, T. M., Bullock, J. S., Collins, M. L. M., Cooper, M. C., Deason, A. J., Dotter, A. L., Fardal, M., Ferguson, A. M. N., Fritz, T. K., Geha, M. C., Gilbert, K. M., Guhathakurta, P., Ibata, R., Irwin, M. J., Jeon, M., Kirby, E. N., Lewis, G. F., Mackey, D., Majewski, S. R., Martin, N., McConnachie, A., Patel, E., Rich, R. M., Simon, J. D., Sohn, S. T., Tollerud, E. J., van der Marel, R. P.
We present the lifetime star formation histories (SFHs) for six ultra-faint dwarf (UFD; $M_V>-7.0$, $ 4.9<\log_{10}({M_*(z=0)}/{M_{\odot}})<5.5$) satellite galaxies of M31 based on deep color-magnitude diagrams constructed from \textit{Hubble Space T
Externí odkaz:
http://arxiv.org/abs/2305.13360
Autor:
Libralato, M., Vesperini, E., Bellini, A., Milone, A. P., van der Marel, R. P., Piotto, G., Anderson, J., Aparicio, A., Barbuy, B., Bedin, L. R., Brown, T. M., Cassisi, S., Nardiello, D., Sarajedini, A., Scalco, M.
Our understanding of the kinematic properties of multiple stellar populations (mPOPs) in Galactic globular clusters (GCs) is still limited compared to what we know about their chemical and photometric characteristics. Such limitation arises from the
Externí odkaz:
http://arxiv.org/abs/2301.04148
Autor:
Milone, A. P., Vesperini, E., Marino, A. F., Hong, J., van der Marel, R., Anderson, J., Renzini, A., Cordoni, G., Bedin, L. R., Bellini, A., Brown, T. M., D'Antona, F., Lagioia, E. P., Libralato, M., Nardiello, D., Piotto, G., Tailo, M., Cool, A., Salaris, M., Sarajedini, A.
A number of scenarios for the formation of multiple populations in globular clusters (GCs) predict that second generation (2G) stars form in a compact and dense subsystem embedded in a more extended first-generation (1G) system. If these scenarios ar
Externí odkaz:
http://arxiv.org/abs/2002.06479
Autor:
Oliveira, R. A. P., Souza, S. O., Kerber, L. O., Barbuy, B., Ortolani, S., Piotto, G., Nardiello, D., Pérez-Villegas, A., Maia, F. F. S., Bica, E., Cassisi, S., D'Antona, F., Lagioia, E., Libralato, M., Milone, A. P., Anderson, J., Aparicio, A., Bedin, L. R., Brown, T. M., King, I. R., Marino, A. F., Pietrinferni, A., Renzini, A., Sarajedini, A., van der Marel, R., Vesperini, E.
In the present work we analyzed seven globular clusters selected from their location in the Galactic bulge and with metallicity values in the range $-1.30\lesssim\rm{[Fe/H]}\lesssim-0.50$. The aim of this work is first to derive cluster ages assuming
Externí odkaz:
http://arxiv.org/abs/2001.08611
Autor:
Cook, D. O., Lee, J. C., Adamo, A., Kim, H., Chandar, R., Whitmore, B. C., Mok, A., Ryon, J. E., Dale, D. A., Calzetti, D., Andrews, J. E., Aloisi, A., Ashworth, G., Bright, S. N., Brown, T. M., Christian, C., Cignoni, M., Clayton, G. C., da Silva, R., de Mink, S. E., Dobbs, C. L., Elmegreen, B. G., Elmegreen, D. M., Evans, A. S., Fumagalli, M., Gallagher III, J. S., Gouliermis, D. A., Grasha, K., Grebel, E. K., Herrero, A., Hunter, D. A., Jensen, E. I., Johnson, K. E., Kahre, L., Kennicutt, R. C., Krumholz, M. R., Lee, N. J., Lennon, D., Linden, S., Martin, C., Messa, M., Nair, P., Nota, A., Ostlin, G., Parziale, R. C., Pellerin, A., Regan, M. W., Sabbi, E., Sacchi, E., Schaerer, D., Schiminovich, D., Shabani, F., Slane, F. A., Small, J., Smith, C. L., Smith, L. J., Taibi, S., Thilker, D. A., de la Torre, I. C., Tosi, M., Turner, J. A., Ubeda, L., Van Dyk, S. D., Walterbos, R. A. M., Wofford, A.
We present the star cluster catalogs for 17 dwarf and irregular galaxies in the $HST$ Treasury Program "Legacy ExtraGalactic UV Survey" (LEGUS). Cluster identification and photometry in this subsample are similar to that of the entire LEGUS sample, b
Externí odkaz:
http://arxiv.org/abs/1902.00082
Autor:
Milone, A. P., Marino, A. F., Renzini, A., D'Antona, F., Anderson, J., Barbuy, B., Bedin, L. R., Bellini, A., Brown, T. M., Cassisi, S., Cordoni, G., Lagioia, E. P., Nardiello, D., Ortolani, S., Piotto, G., Sarajedini, A., Tailo, M., van der Marel, R. P., Vesperini, E.
Recent work, based on data from the Hubble Space Telescope (HST) UV Legacy Survey of Galactic Globular Clusters (GCs), has revealed that all the analyzed clusters host two groups of first- (1G) and second-generation (2G) stars. In most GCs, both 1G a
Externí odkaz:
http://arxiv.org/abs/1809.05006
Autor:
Brown, T. M., Casertano, S., Strader, J., Riess, A., VandenBerg, D. A., Soderblom, D. R., Kalirai, J., Salinas, R.
Using the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST), we have obtained a direct trigonometric parallax for the nearest metal-poor globular cluster, NGC 6397. Although trigonometric parallaxes have been previously measured for many
Externí odkaz:
http://arxiv.org/abs/1803.02927
Autor:
Kahre, L., Walterbos, R. A., Kim, H., Thilker, D., Calzetti, D., Lee, J. C., Sabbi, E., Ubeda, L., Aloisi, A., Cignoni, M., Cook, D. O., Dale, D. A., Elmegreen, B. G., Elmegreen, D. M., Fumagalli, M., Gallagher III, J. S., Gouliermis, D. A., Grasha, K., Grebel, E. K., Hunter, D. A., Sacchi, E., Smith, L. J., Tosi, M., Adamo, A., Andrews, J. E., Ashworth, G., Bright, S. N., Brown, T. M., Chandar, R., Christian, C., de Mink, S. E., Dobbs, C., Evans, A. S., Herrero, A., Johnson, K. E., Kennicutt, R. C., Krumholz, M. R., Messa, M., Nair, P., Nota, A., Pellerin, A., Ryon, J. E., Schaerer, D., Shabani, F., Van Dyk, S. D., Whitmore, B. C., Wofford, A.
Publikováno v:
The Astrophysical Journal, 855:133 (16pp), 2018 March 10
We present a study of the dust-to-gas ratios in five nearby galaxies NGC 628 (M74), NGC 6503, NGC 7793, UGC 5139 (Holmberg I), and UGC 4305 (Holmberg II). Using Hubble Space Telescope broad band WFC3/UVIS UV and optical images from the Treasury progr
Externí odkaz:
http://arxiv.org/abs/1802.06915
Autor:
Simioni, M., Bedin, L. R., Aparicio, A., Piotto, G., Milone, A. P., Nardiello, D., Anderson, J., Bellini, A., Brown, T. M., Cassisi, S., Cunial, A., Granata, V., Ortolani, S., van der Marel, R. P., Vesperini, E.
As part of the Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters, 110 parallel fields were observed with the Wide Field Channel of the Advanced Camera for Surveys, in the outskirts of 48 globular clusters, plus the open cluster NG
Externí odkaz:
http://arxiv.org/abs/1801.07445
Autor:
Sabbi, E., Calzetti, D., Ubeda, L., Adamo, A., Cignoni, M., Thilker, D., Aloisi, A., Elmegreen, B. G., Elmegreen, D. M., Gouliermis, D. A., Grebel, E. K., Messa, M., Smith, L. J., Tosi, M., Dolphin, A., Andrews, J. E., Ashworth, G., Bright, S. N., Brown, T. M., Chandar, R., Christian, C., Clayton, G. C., Cook, D. O., Dale, D. A., de Mink, S. E., Dobbs, C., Evans, A. S., Fumagalli, M., Gallagher III, J. S., Grasha, K., Herrero, A., Hunter, D. A., Johnson, K. E., Kahre, L., Kennicutt, R. C., Kim, H., Krumholz, M. R., Lee, J. C., Lennon, D., Martin, C., Nair, P., Nota, A., Ostlin, G., Pellerin, A., Prieto, J., Regan, M. W., Ryon, J. E., Sacchi, E., Schaerer, D., Schiminovich, D., Shabani, F., Van Dyk, S. D., Walterbos, R., Whitmore, B. C., Wofford, A.
The Legacy ExtraGalactic UV Survey (LEGUS) is a multiwavelength Cycle 21 Treasury program on the Hubble Space Telescope. It studied 50 nearby star-forming galaxies in five bands from the near UV to the I-band, combining new Wide Field Camera 3 observ
Externí odkaz:
http://arxiv.org/abs/1801.05467