Zobrazeno 1 - 10
of 206
pro vyhledávání: '"Bernard, E. J."'
Autor:
Massana, P., Ruiz-Lara, T., Noël, N. E. D., Gallart, C., Nidever, D. L., Choi, Y., Sakowska, J. D., Besla, G., Olsen, K. A. G., Monelli, M., Dorta, A., Stringfellow, G. S., Cassisi, S., Bernard, E. J., Zaritsky, D., Cioni, M. -R. L., Monachesi, A., van der Marel, R. P., de Boer, T. J. L., Walker, A. R.
We use the SMASH survey to obtain unprecedented deep photometry reaching down to the oldest main sequence turn-offs in the colour-magnitude diagrams (CMDs) of the Small Magellanic Cloud (SMC) and quantitatively derive its star formation history (SFH)
Externí odkaz:
http://arxiv.org/abs/2203.09523
Autor:
Martínez-Vázquez, C. E., Monelli, M., Cassisi, S., Taibi, S., Gallart, C., Vivas, A. K., Walker, A. R., Martín-Ravelo, P., Zenteno, A., Battaglia, G., Bono, G., Calamida, A., Carollo, D., Cicuéndez, L., Fiorentino, G., Marconi, M., Salvadori, S., Balbinot, E., Bernard, E. J., Dall'Ora, M., Stetson, P. B.
We present a detailed study of the variable star population of Eridanus II (Eri II), an ultra-faint dwarf galaxy that lies close to the Milky Way virial radius. We analyze multi-epoch $g,r,i$ ground-based data from Goodman and the Dark Energy Camera,
Externí odkaz:
http://arxiv.org/abs/2109.01177
Autor:
Gallart, C., Monelli, M., Ruiz-Lara, T., Calamida, A., Cassisi, S., Cignoni, M., Anderson, J., Battaglia, G., Bermejo-Climent, J. R., Bernard, E. J., Martínez-Vázquez, C. E., Mayer, L., Salvadori, S., Monachesi, A., Navarro, J. F., Shen, S., Surot, F., Tosi, M., Bajaj, V., Strinfellow, G. S.
Eridanus II (EriII) is an ultra-faint dwarf (UFD) galaxy (M_V=-7.1) located at a distance close to the Milky Way virial radius. Early shallow color-magnitude diagrams (CMD) indicated that it possibly hosted an intermediate-age or even young stellar p
Externí odkaz:
http://arxiv.org/abs/2101.04464
Autor:
Ruiz-Lara, T., Gallart, C., Monelli, M., Nidever, D., Dorta, A., Choi, Y., Olsen, K., Besla, G., Bernard, E. J., Cassisi, S., Massana, P., Noël, N. E. D., Pérez, I., Rusakov, V., Cioni, M. -R. L., Majewski, S. R., van der Marel, R. P., Martínez-Delgado, D., Monachesi, A., Monteagudo, L., Muñoz, R. R., Stringfellow, G. S., Surot, F., Vivas, A. K., Walker, A. R., Zaritsky, D.
Publikováno v:
A&A 639, L3 (2020)
The Large Magellanic Cloud (LMC) is the closest and most studied example of an irregular galaxy. Among its principal defining morphological features, its off-centred bar and single spiral arm stand out, defining a whole family of galaxies known as th
Externí odkaz:
http://arxiv.org/abs/2006.10759
Autor:
Rusakov, V., Monelli, M., Gallart, C., Fritz, T. K., Ruiz-Lara, T., Bernard, E. J., Cassisi, S.
We present a new derivation of the star formation history (SFH) of the dSph galaxy Fornax in two central regions, characterised by unprecedented precision and age resolution. It reveals that star formation has proceeded in sharp bursts separated by p
Externí odkaz:
http://arxiv.org/abs/2002.09714
Autor:
Walker, A. R., Martínez-Vázquez, C. E., Monelli, M., Vivas, A. K., Bono, G., Gallart, C., Cassisi, S., Andreuzzi, G., Bernard, E. J., Dall'Ora, M., Fiorentino, G., Nidever, D. L., Olsen, K., Pietrinferni, A., Stetson, P. B.
We present a deep Blanco/DECam colour-magnitude diagram (CMD) for the large but very diffuse Milky Way satellite dwarf galaxy Crater II. The CMD shows only old stars with a clearly bifurcated subgiant branch (SGB) that feeds a narrow red giant branch
Externí odkaz:
http://arxiv.org/abs/1910.02143
Autor:
Monelli, M., Walker, A. R., Martìnez-Vàzquez, C. E., Stetson, P. B., Gallart, C., Bernard, E. J., Bono, G., Vivas, A. K., Andreuzzi, G., Dall'Ora, M., Fiorentino, G., Dorta, A.
We present a search and analysis of variable stars in the recently discovered Crater~II dwarf galaxy. Based on $B$, $V$, $I$ data collected with the Isaac Newton Telescope (FoV$\sim$0.44 square degrees) we detected 37 variable stars, of which 34 are
Externí odkaz:
http://arxiv.org/abs/1806.08595
Autor:
Ruiz-Lara, T., Gallart, C., Beasley, M., Monelli, M., Bernard, E. J., Battaglia, G., Sánchez-Blázquez, P., Florido, E., Pérez, I., Martín-Navarro, I.
Publikováno v:
A&A 617, A18 (2018)
Context. Most of our knowledge on the stellar component of galaxies is based on the analysis of distant systems and comes from integrated light data. It is important to test whether the results of the star formation histories (SFH) obtained with stan
Externí odkaz:
http://arxiv.org/abs/1805.04323
We discuss the origin of the LMC stellar bar by comparing the star formation histories (SFH) obtained from deep color-magnitude diagrams (CMDs) in the bar and in a number of fields in different directions within the inner disk. The CMDs, reaching the
Externí odkaz:
http://arxiv.org/abs/1710.01556
Autor:
Simpson, J. D., De Silva, G. M., Martell, S. L., Zucker, D. B., Ferguson, A. M. N., Bernard, E. J., Irwin, M., Penarrubia, J., Tolstoy, E.
We confirm the reality of the recently discovered Milky Way stellar cluster $\textit{Gaia}$ 1 using spectra acquired with the HERMES and AAOmega spectrographs of the Anglo-Australian Telescope. This cluster had been previously undiscovered due to its
Externí odkaz:
http://arxiv.org/abs/1703.03823