JWST Observations of Starbursts: Massive Star Clusters in the Central Starburst of M82
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| Formato: | Preprint |
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2024
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| author | Levy, Rebecca C. Bolatto, Alberto D. Mayya, Divakara Cuevas-Otahola, Bolivia Tarantino, Elizabeth Boyer, Martha L. Boogaard, Leindert A. Böker, Torsten Cronin, Serena A. Dale, Daniel A. Donaghue, Keaton Emig, Kimberly L. Fisher, Deanne B. Glover, Simon C. O. Herrera-Camus, Rodrigo Jiménez-Donaire, María J. Klessen, Ralf S. Lenkić, Laura Leroy, Adam K. De Looze, Ilse Meier, David S. Mills, Elisabeth A. C. Ott, Juergen Relaño, Mónica Veilleux, Sylvain Villanueva, Vicente Walter, Fabian van der Werf, Paul P. |
| author_facet | Levy, Rebecca C. Bolatto, Alberto D. Mayya, Divakara Cuevas-Otahola, Bolivia Tarantino, Elizabeth Boyer, Martha L. Boogaard, Leindert A. Böker, Torsten Cronin, Serena A. Dale, Daniel A. Donaghue, Keaton Emig, Kimberly L. Fisher, Deanne B. Glover, Simon C. O. Herrera-Camus, Rodrigo Jiménez-Donaire, María J. Klessen, Ralf S. Lenkić, Laura Leroy, Adam K. De Looze, Ilse Meier, David S. Mills, Elisabeth A. C. Ott, Juergen Relaño, Mónica Veilleux, Sylvain Villanueva, Vicente Walter, Fabian van der Werf, Paul P. |
| contents | We present a near infrared (NIR) candidate star cluster catalog for the central kiloparsec of M82 based on new JWST NIRCam images. We identify star cluster candidates using the F250M filter, finding 1357 star cluster candidates with stellar masses $>10^4$ M$_\odot$. Compared to previous optical catalogs, nearly all (87%) of the candidates we identify are new. The star cluster candidates have a median intrinsic cluster radius of $\approx$1 pc and have stellar masses up to $10^6$ M$_\odot$. By comparing the color-color diagram to dust-free yggdrasil stellar population models, we estimate that the star cluster candidates have A$_{\rm V}\sim3-24$ mag, corresponding to A$_{\rm 2.5μm}\sim0.3-2.1$ mag. There is still appreciable dust extinction towards these clusters into the NIR. We measure the stellar masses of the star cluster candidates, assuming ages of 0 and 8 Myr. The slope of the resulting cluster mass function is $β=1.9\pm0.2$, in excellent agreement with studies of star clusters in other galaxies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_04135 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | JWST Observations of Starbursts: Massive Star Clusters in the Central Starburst of M82 Levy, Rebecca C. Bolatto, Alberto D. Mayya, Divakara Cuevas-Otahola, Bolivia Tarantino, Elizabeth Boyer, Martha L. Boogaard, Leindert A. Böker, Torsten Cronin, Serena A. Dale, Daniel A. Donaghue, Keaton Emig, Kimberly L. Fisher, Deanne B. Glover, Simon C. O. Herrera-Camus, Rodrigo Jiménez-Donaire, María J. Klessen, Ralf S. Lenkić, Laura Leroy, Adam K. De Looze, Ilse Meier, David S. Mills, Elisabeth A. C. Ott, Juergen Relaño, Mónica Veilleux, Sylvain Villanueva, Vicente Walter, Fabian van der Werf, Paul P. Astrophysics of Galaxies We present a near infrared (NIR) candidate star cluster catalog for the central kiloparsec of M82 based on new JWST NIRCam images. We identify star cluster candidates using the F250M filter, finding 1357 star cluster candidates with stellar masses $>10^4$ M$_\odot$. Compared to previous optical catalogs, nearly all (87%) of the candidates we identify are new. The star cluster candidates have a median intrinsic cluster radius of $\approx$1 pc and have stellar masses up to $10^6$ M$_\odot$. By comparing the color-color diagram to dust-free yggdrasil stellar population models, we estimate that the star cluster candidates have A$_{\rm V}\sim3-24$ mag, corresponding to A$_{\rm 2.5μm}\sim0.3-2.1$ mag. There is still appreciable dust extinction towards these clusters into the NIR. We measure the stellar masses of the star cluster candidates, assuming ages of 0 and 8 Myr. The slope of the resulting cluster mass function is $β=1.9\pm0.2$, in excellent agreement with studies of star clusters in other galaxies. |
| title | JWST Observations of Starbursts: Massive Star Clusters in the Central Starburst of M82 |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2408.04135 |