One hundred SMUDGes in S-PLUS: ultra-diffuse galaxies flourish in the field
We present the first systematic study of the stellar populations of ultra-diffuse galaxies (UDGs) in the field, integrating the large area search and characterization of UDGs by the SMUDGes survey with the twelve-band optical photometry of the S-PLUS survey. Based on Bayesian modeling of the optical...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2020
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/140826 |
| Aporte de: |
| id |
I19-R120-10915-140826 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Astronomía Low surface brightness galaxies Stellar populations Stellar ages Metallicity Stellar masses |
| spellingShingle |
Astronomía Low surface brightness galaxies Stellar populations Stellar ages Metallicity Stellar masses Barbosa, C. E. Zaritsky, Dennis Donnerstein, Richard L. Zhang, Huanian Dey, Arjun Mendes de Oliveira, C. Sampedro, L. Molino, Alberto Costa Duarte, M. V. Coelho, Paula Cortesi, A. Herpich, F. R. Hernandez Jimenez, J. A. Santos Silva, Teresa Pereira, Eduardo S. Werle, A. Overzier, Roderik Fernandes, R. Cid Smith Castelli, Analía Viviana Ribeiro, T. Schoenell, William Kanaan, Antonio One hundred SMUDGes in S-PLUS: ultra-diffuse galaxies flourish in the field |
| topic_facet |
Astronomía Low surface brightness galaxies Stellar populations Stellar ages Metallicity Stellar masses |
| description |
We present the first systematic study of the stellar populations of ultra-diffuse galaxies (UDGs) in the field, integrating the large area search and characterization of UDGs by the SMUDGes survey with the twelve-band optical photometry of the S-PLUS survey. Based on Bayesian modeling of the optical colors of UDGs, we determine the ages, metallicities and stellar masses of 100 UDGs distributed in an area of $\sim 330$ deg$^2$ in the Stripe 82 region. We find that the stellar masses and metallicities of field UDGs are similar to those observed in clusters and follow the trends previously defined in studies of dwarf and giant galaxies. However, field UDGs have younger luminosity-weighted ages than do UDGs in clusters. We interpret this result to mean that field UDGs have more extended star formation histories, including some that continue to form stars at low levels to the present time. Finally, we examine stellar population scaling relations that show that UDGs are, as a population, similar to other low-surface brightness galaxies. |
| format |
Articulo Articulo |
| author |
Barbosa, C. E. Zaritsky, Dennis Donnerstein, Richard L. Zhang, Huanian Dey, Arjun Mendes de Oliveira, C. Sampedro, L. Molino, Alberto Costa Duarte, M. V. Coelho, Paula Cortesi, A. Herpich, F. R. Hernandez Jimenez, J. A. Santos Silva, Teresa Pereira, Eduardo S. Werle, A. Overzier, Roderik Fernandes, R. Cid Smith Castelli, Analía Viviana Ribeiro, T. Schoenell, William Kanaan, Antonio |
| author_facet |
Barbosa, C. E. Zaritsky, Dennis Donnerstein, Richard L. Zhang, Huanian Dey, Arjun Mendes de Oliveira, C. Sampedro, L. Molino, Alberto Costa Duarte, M. V. Coelho, Paula Cortesi, A. Herpich, F. R. Hernandez Jimenez, J. A. Santos Silva, Teresa Pereira, Eduardo S. Werle, A. Overzier, Roderik Fernandes, R. Cid Smith Castelli, Analía Viviana Ribeiro, T. Schoenell, William Kanaan, Antonio |
| author_sort |
Barbosa, C. E. |
| title |
One hundred SMUDGes in S-PLUS: ultra-diffuse galaxies flourish in the field |
| title_short |
One hundred SMUDGes in S-PLUS: ultra-diffuse galaxies flourish in the field |
| title_full |
One hundred SMUDGes in S-PLUS: ultra-diffuse galaxies flourish in the field |
| title_fullStr |
One hundred SMUDGes in S-PLUS: ultra-diffuse galaxies flourish in the field |
| title_full_unstemmed |
One hundred SMUDGes in S-PLUS: ultra-diffuse galaxies flourish in the field |
| title_sort |
one hundred smudges in s-plus: ultra-diffuse galaxies flourish in the field |
| publishDate |
2020 |
| url |
http://sedici.unlp.edu.ar/handle/10915/140826 |
| work_keys_str_mv |
AT barbosace onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT zaritskydennis onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT donnersteinrichardl onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT zhanghuanian onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT deyarjun onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT mendesdeoliveirac onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT sampedrol onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT molinoalberto onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT costaduartemv onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT coelhopaula onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT cortesia onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT herpichfr onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT hernandezjimenezja onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT santossilvateresa onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT pereiraeduardos onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT werlea onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT overzierroderik onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT fernandesrcid onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT smithcastellianaliaviviana onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT ribeirot onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT schoenellwilliam onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield AT kanaanantonio onehundredsmudgesinsplusultradiffusegalaxiesflourishinthefield |
| bdutipo_str |
Repositorios |
| _version_ |
1764820459616993281 |