Zobrazeno 1 - 10
of 639
pro vyhledávání: '"Dall'Ora M"'
Autor:
Braga, V. F., Monelli, M., Dall'Ora, M., Mullen, J. P., Molinaro, R., Marconi, M., Szabó, R., Gallart, C.
The \textit{Vera C. Rubin} Observatory will start operations in 2025. During the first two years, too few visits per target per band will be available, meaning that mean magnitude measurements of variable stars will not be precise and thus, standard
Externí odkaz:
http://arxiv.org/abs/2407.20813
We present preliminary findings from the photometric survey "Yes, Magellanic Clouds Again" (YMCA, PI: V. Ripepi), covering 110 square degrees in the outer regions of the Magellanic Clouds (MCs), a pair of interacting galaxies and the most massive dwa
Externí odkaz:
http://arxiv.org/abs/2407.19991
Autor:
Saracco, P., Conconi, P., Arcidiacono, C., Portaluri, E., Mahmoodzadeh, H., D'Orazi, V., Fedele, D., Gargiulo, A., Vanzella, E., Franzetti, P., Arosio, I., Barbalini, L., Lops, G., Molinari, E., Cascone, E., Cianniello, V., D'Auria, D., De Caprio, V., Di Antonio, I., Di Francesco, B., Di Rico, G., Eredia, C., Fumana, M., Greggio, D., Rodeghiero, G., Scalera, M., Alcala', J. M., Bisogni, S., Bonito, R., Bono, G., Garatti, A. Caratti o, Bonta', E. Dalla, Dall'Ora, M., Fiorentino, G., Gallazzi, A. R., Guarcello, M., Izzo, L., La Barbera, F., Lardo, C., Longhetti, M., Longobardo, A., Magrini, L., Mancini, C., Mura, A., Piconcelli, E., Pizzella, A., Podio, L., Polletta, M., Prisinzano, L., Ricci, F., Ripepi, V., Roccatagliata, V., Vietri, G.
The Extremely Large Telescopes (ELTs), thanks to their large apertures and cutting-edge Multi-Conjugate Adaptive Optics (MCAO) systems, promise to deliver sharper and deeper data even than the JWST. SHARP is a concept study for a near-IR (0.95-2.45 $
Externí odkaz:
http://arxiv.org/abs/2407.06264
Autor:
Di Criscienzo, M., Leccia, S., Braga, V., Musella, I., Bono, G., Dall'Ora, M., Fiorentino, G., Marconi, M., Molinaro, R., Ripepi, V., Girardi, L., Mazzi, A., Pastorelli, G., Trabucchi, M., Matsunaga, N., Monelli, M., Saha, A., Vivas, K., Sanchez, R. Zanmar
This work is part of VESTALE, a project initiated within the Rubin-LSST Cadence Strategy Optimization Process . Its goal is to explore the potential of Rubin-LSST observations aimed at the Galaxy's bulge (Bulge) for studying RR Lyrae stars (RRL). Obs
Externí odkaz:
http://arxiv.org/abs/2406.12488
Autor:
da Silva, R., D'Orazi, V., Palla, M., Bono, G., Braga, V. F., Fabrizio, M., Lemasle, B., Spitoni, E., Matteucci, F., Jonsson, H., Kovtyukh, V., Magrini, L., Bergemann, M., Dall'Ora, M., Ferraro, I., Fiorentino, G., Francois, P., Iannicola, G., Inno, L., Kudritzki, R. -P., Matsunaga, N., Monelli, M., Nonino, M., Sneden, C., Storm, J., Thevenin, F., Tsujimoto, T., Zocchi, A.
Publikováno v:
A&A 678, A195 (2023)
Classical Cepheids (CCs) are solid distance indicators and tracers of young stellar populations. Our aim is to provide iron, oxygen, and sulfur abundances for the largest and most homogeneous sample of Galactic CCs ever analyzed. The current sample c
Externí odkaz:
http://arxiv.org/abs/2308.01928
Autor:
Rea, Nanda, Hurley-Walker, Natasha, Pardo-Araujo, Celsa, Ronchi, Michele, Graber, Vanessa, Zelati, Francesco Coti, De Martino, Domitilla, Bahramian, Arash, McSweeney, Sam J., Galvin, Tim J., Hyman, Scott D., Dall'Ora, M.
The nature of two recently discovered radio emitters with unusually long periods of 18min (GLEAM-X J1627-52) and 21min (GPM J1839-10) is highly debated. Their bright radio emission resembles that of radio magnetars, but their long periodicities and l
Externí odkaz:
http://arxiv.org/abs/2307.10351
Autor:
Braga, V. F., Fiorentino, G., Bono, G., Stetson, P. B., Martínez-Vázquez, C. E., Kwak, S., Tantalo, M., Dall'Ora, M., Di Criscienzo, M., Fabrizio, M., Marengo, M., Marinoni, S., Marrese, P. M., Monelli, M.
We investigate the properties of the mixed-mode (RRd) RR Lyrae (RRL) variables in the Fornax dwarf spheroidal (dSph) galaxy by using $B$- and $V$-band time series collected over twenty-four years. We compare the properties of the RRds in Fornax with
Externí odkaz:
http://arxiv.org/abs/2209.14004
Autor:
Gatto, M., Ripepi, V., Bellazzini, M., Tosi, M., Tortora, C., Cignoni, M., Dall'Ora, M., Cioni, M. -R. L., Cusano, F., Longo, G., Marconi, M., Musella, I., Schipani, P., Spavone, M.
Publikováno v:
A&A 664, L12 (2022)
The star cluster (SC) age distribution of the Large Magellanic Cloud (LMC) exhibits a gap from $\sim$ 4 to 10 Gyr ago, with an almost total absence of SCs. Within this age gap, only two confirmed SCs have been identified hitherto. Nonetheless, the st
Externí odkaz:
http://arxiv.org/abs/2207.09478
Autor:
Prudil, Z., Koch-Hansen, A. J, Lemasle, B., Grebel, E. K., Marchetti, T., Hansen, C. J., Crestani, J., Braga, V. F., Bono, G., Chaboyer, B., Fabrizio, M., Dall'Ora, M., Martínez-Vázquez, C. E.
Publikováno v:
A&A 664, A148 (2022)
We report the discovery of high velocity candidates among RR~Lyrae stars found in the Milky Way halo. We identified 9 RR~Lyrae stars with Galactocentric velocities exceeding the local escape velocity based on the assumed Galaxy potential. Based on cl
Externí odkaz:
http://arxiv.org/abs/2206.00417
Autor:
Gatto, M., Ripepi, V., Bellazzini, M., Dall'Ora, M., Tosi, M., Tortora, C., Cignoni, M., Cioni, M. -R. L., Cusano, F., Longo, G., Marconi, M., Musella, I., Schipani, P., Spavone, M.
We present FORS2@VLT follow-up photometry of YMCA-1, a recently discovered stellar system located 13\degr~from the Large Magellanic Cloud (LMC) center. The deep color-magnitude diagram (CMD) reveals a well-defined main sequence (MS) and a handful of
Externí odkaz:
http://arxiv.org/abs/2204.02420