Zobrazeno 1 - 10
of 711
pro vyhledávání: '"Sacchi, E"'
Autor:
Bellazzini, M., Annibali, F., Correnti, M., Gatto, M., Marinelli, M., Pascale, R., Sacchi, E., Tosi, M., Cignoni, M., Cannon, J. M., Schisgal, L., Bortolini, G., Aloisi, A., Beccari, G., Nipoti, C.
Publikováno v:
A&A 690, L12 (2024)
New, deep HST photometry allowed us to identify and study eight compact and bright (M_V< -5.8) star clusters in the outskirts of the star-forming isolated dwarf galaxy NGC5238 (M_*= 10^8 M_sun). Five of these clusters are new discoveries, and six app
Externí odkaz:
http://arxiv.org/abs/2409.16436
Autor:
Bortolini, G., Cignoni, M., Sacchi, E., Tosi, M., Annibali, F., Pascale, R., Bellazzini, M., Calzetti, D., Adamo, A., Dale, Daniel. A., Fumagalli, M., Gallagher, John. S., Grasha, K., Johnson, Kelsey E., Linden, Sean. T., Messa, M., Östlin, G., Sabbi, E., Wofford, A.
We study the resolved stellar populations and derive the star formation history of NGC 5474, a peculiar star-forming dwarf galaxy at a distance of $\sim 7$ Mpc, using Hubble Space Telescope Advanced Camera for Surveys data from the Legacy Extragalact
Externí odkaz:
http://arxiv.org/abs/2311.08160
Autor:
Teh, J. W., Grasha, K., Krumholz, M. R., Battisti, A., Calzetti, D., Rousseau-Nepton, L., Rhea, C., Adamo, A., Kennicutt, R. C., Grebel, E. K., Cook, D. O., Combes, F., Messa, M., Linden, S., Klessen, R. S., Vilchez, J. M., Fumagalli, M., McLeod, A. F., Smith, L. J., Chemin, L., Wang, J., Sabbi, E., Sacchi, E., Petric, A., Della Bruna, L., Boselli, A.
The ionising radiation of young and massive stars is a crucial form of stellar feedback. Most ionising (Lyman-continuum; LyC, $\lambda < 912A$) photons are absorbed close to the stars that produce them, forming compact HII regions, but some escape in
Externí odkaz:
http://arxiv.org/abs/2306.05457
Autor:
Adamo, A., Ryon, J. E., Messa, M., Kim, H., Grasha, K., Cook, D. O., Calzetti, D., Lee, J. C., Whitmore, B. C., Elmegreen, B. G., Ubeda, L., Smith, L. J., Bright, S. N., Runnholm, A., Andrews, J. E., Fumagalli, M., Gouliermis, D. A., Kahre, L., Nair, P., Thilker, D., Walterbos, R., Wofford, A., Aloisi, A., Ashworth, G., Brown, T. M., Chandar, R., Christian, C., Cignoni, M., Clayton, G. C., Dale, D. A., de Mink, S. E., Dobbs, C., Elmegreen, D. M., Evans, A. S., Gallagher III, J. S., Grebel, E. K., Herrero, A., Hunter, D. A., Johnson, K. E., Kennicutt, R. C., Krumholz, M. R., Lennon, D., Levay, K., Martin, C., Nota, A., Ostlin, G., Pellerin, A., Prieto, J., Regan, M. W., Sabbi, E., Sacchi, E., Schaerer, D., Schiminovich, D., Shabani, F., Tosi, M., Van Dyk, S. D., Zackrisson, E.
We report the large effort that is producing comprehensive high-level young star cluster (YSC) catalogs for a significant fraction of galaxies observed with the Legacy ExtraGalactic UV Survey (LEGUS) Hubble treasury program. We present the methodolog
Externí odkaz:
http://hdl.handle.net/10150/624449
http://arizona.openrepository.com/arizona/handle/10150/624449
http://arizona.openrepository.com/arizona/handle/10150/624449
Autor:
Cook, D. O., Lee, J. C., Adamo, A., Calzetti, D., Chandar, R., Whitmore, B. C., Aloisi, A., Cignoni, M., Dale, D. A., Elmegreen, B. G., Fumagalli, M., Grasha, K., Johnson, K. E., Kennicutt, R. C., Kim, H., Linden, S. T., Messa, M., Östlin, G., Ryon, J. E., Sacchi, E., Thilker, D. A., Tosi, M., Wofford, A.
We study the young star cluster populations in 23 dwarf and irregular galaxies observed by the HST Legacy ExtraGalactic Ultraviolet Survey (LEGUS), and examine relationships between the ensemble properties of the cluster populations and those of thei
Externí odkaz:
http://arxiv.org/abs/2212.07519
Autor:
Linden, S. T., Perez, G., Calzetti, D., Maji, S., Messa, M., Whitmore, B. C., Chandar, R., Adamo, A., Grasha, K., Cook, D. O., Elmegreen, B. G., Dale, D. A., Sacchi, E., Sabbi, E., Grebel, E. K., Smith, L.
We present Hubble Space Telescope WFC3/UVIS (F275W, F336W) and ACS/WFC optical (F435W, F555W, and F814W) observations of the nearby grand-design spiral galaxy M101 as part of the Legacy Extragalactic UV Survey (LEGUS). Compact sources detected in at
Externí odkaz:
http://arxiv.org/abs/2206.13972
Autor:
Annibali, F., Bacchini, C., Iorio, G., Bellazzini, M., Pascale, R., Beccari, G., Cignoni, M., Ciotti, L., Nipoti, C., Sacchi, E., Tosi, M., Cusano, F., Bisogni, S., Gargiulo, A., Paris, D.
Using Large Binocular Telescope deep imaging data from the Smallest Scale of Hierarchy Survey (SSH) and archival Hubble Space Telescope data, we reveal the presence of two elongated stellar features contiguous to a bar-like stellar structure in the i
Externí odkaz:
http://arxiv.org/abs/2202.11734
Autor:
Pascale, R., Annibali, F., Tosi, M., Marinacci, F., Nipoti, C., Bellazzini, M., Romano, D., Sacchi, E., Aloisi, A., Cignoni, M.
Using hydrodynamical $N$-body simulations, we show that the observed structure and kinematics of the extremely metal-poor, dwarf irregular galaxy DDO 68 is compatible with a merger event with at least two smaller satellite galaxies. We were able to o
Externí odkaz:
http://arxiv.org/abs/2110.13175
Autor:
Lin, Zesen, Calzetti, Daniela, Kong, Xu, Adamo, A., Cignoni, M., Cook, D. O., Dale, D. A., Grasha, K., Grebel, E. K., Messa, M., Sacchi, E., Smith, L. J.
Publikováno v:
ApJ, 896, 16, 2020
Using the star cluster catalogs from the Hubble Space Telescope program Legacy ExtraGalactic UV survey (LEGUS) and 8 $\mu$m images from the IRAC camera on the Spitzer Space Telescope for 5 galaxies within 5 Mpc, we investigate how the 8 $\mu$m dust l
Externí odkaz:
http://arxiv.org/abs/2005.02446
Autor:
Wofford, Aida, Ramirez, Vanesa, Lee, Janice C., Thilker, David A., Della Bruna, Lorenza, Adamo, Angela, Van Dyk, Schuyler D., Herrero, Artemio, Kim, Hwihyun, Aloisi, Alessandra, Calzetti, Daniela, Chandar, Rupali, Dale, Daniel A., de Mink, Selma E., Gallagher, John S., Gouliermis, Dimitrios A., Grasha, Kathryn, Grebel, Eva K., Sacchi, E., Smith, Linda J., Ubeda, Leonardo, Walterbos, Rene A. M., Hannon, Stephen, Messa, Matteo
Only about 19 Galactic and 25 extra-galactic bona-fide Luminous Blue Variables (LBVs) are known to date. This incomplete census prevents our understanding of this crucial phase of massive star evolution which leads to the formation of heavy binary bl
Externí odkaz:
http://arxiv.org/abs/2001.10113