VENUS: A Strongly Lensed Clumpy Galaxy at $z\sim11-12$ behind the Galaxy Cluster MACS J0257.1-2325
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866910013806608384 |
|---|---|
| author | Nakane, Minami Kokorev, Vasily Fujimoto, Seiji Ouchi, Masami McLeod, Derek J. Golubchik, Miriam Oguri, Masamune Zitrin, Adi Bondestam, Cecilia Donnan, Callum T. Brammer, Gabriel Finkelstein, Steven L. Willott, Chris Rihtarsic, Gregor Desprez, Guillaume Adamo, Angela Vanzella, Eros Bradač, Maruša Messa, Matteo Yanagisawa, Hiroto Sun, Fengwu Ferguson, Henry C. Lucas, Ray A. Coe, Dan Richard, Johan Abdurro'uf Akins, Hollis B. Allingham, Joseph F. V. Amorín, Ricardo O. Asada, Yoshihisa Atek, Hakim Bezanson, Rachel Bradley, Larry D. Chisholm, John Conselice, Christopher J. Dayal, Pratika Dessauges-Zavadsky, Miroslava Diego, Jose M. Faisst, Andreas L. Fei, Qinyue Frye, Brenda L. Fudamoto, Yoshinobu Furtak, Lukas J. Harikane, Yuichi Hsiao, Tiger Yu-Yang Jiménez-Teja, Yolanda Kartaltepe, Jeyhan S. Kiyota, Tomokazu Koekemoer, Anton M. Lagos, Claudia del P. Magdis, Georgios E. Meena, Ashish Kumar Mowla, Lamiya Noirot, Gaël Oesch, Pascal A. Ono, Yoshiaki Ortiz III, Rafael Pan, Richard Papovich, Casey Pierel, Justin D. Ricotti, Massimo Robbins, Luke Schaerer, Daniel Schneider, Raffaella Treu, Tommaso Valentino, Francesco Windhorst, Rogier A. Bauer, Franz E. Bromm, Volker Egami, Eiichi González-Otero, Mauro Kohno, Kotaro Labbe, Ivo Matthee, Jorryt Mun, Marcie Naidu, Rohan P. Tripodi, Roberta |
| author_facet | Nakane, Minami Kokorev, Vasily Fujimoto, Seiji Ouchi, Masami McLeod, Derek J. Golubchik, Miriam Oguri, Masamune Zitrin, Adi Bondestam, Cecilia Donnan, Callum T. Brammer, Gabriel Finkelstein, Steven L. Willott, Chris Rihtarsic, Gregor Desprez, Guillaume Adamo, Angela Vanzella, Eros Bradač, Maruša Messa, Matteo Yanagisawa, Hiroto Sun, Fengwu Ferguson, Henry C. Lucas, Ray A. Coe, Dan Richard, Johan Abdurro'uf Akins, Hollis B. Allingham, Joseph F. V. Amorín, Ricardo O. Asada, Yoshihisa Atek, Hakim Bezanson, Rachel Bradley, Larry D. Chisholm, John Conselice, Christopher J. Dayal, Pratika Dessauges-Zavadsky, Miroslava Diego, Jose M. Faisst, Andreas L. Fei, Qinyue Frye, Brenda L. Fudamoto, Yoshinobu Furtak, Lukas J. Harikane, Yuichi Hsiao, Tiger Yu-Yang Jiménez-Teja, Yolanda Kartaltepe, Jeyhan S. Kiyota, Tomokazu Koekemoer, Anton M. Lagos, Claudia del P. Magdis, Georgios E. Meena, Ashish Kumar Mowla, Lamiya Noirot, Gaël Oesch, Pascal A. Ono, Yoshiaki Ortiz III, Rafael Pan, Richard Papovich, Casey Pierel, Justin D. Ricotti, Massimo Robbins, Luke Schaerer, Daniel Schneider, Raffaella Treu, Tommaso Valentino, Francesco Windhorst, Rogier A. Bauer, Franz E. Bromm, Volker Egami, Eiichi González-Otero, Mauro Kohno, Kotaro Labbe, Ivo Matthee, Jorryt Mun, Marcie Naidu, Rohan P. Tripodi, Roberta |
| contents | We present the discovery of a strongly lensed galaxy at $z\sim11-12$, dubbed the ``Misty Moons'', identified in the JWST Treasury Survey, Vast Exploration for Nascent, Unexplored Sources (VENUS). The Misty Moons is gravitationally lensed by the galaxy cluster MACS J0257.1-2325 at $z=0.505$, and has five multiple images suggested by two independent lensing models. Two of the five images, ID1 and ID2 ($μ\sim 20-30$), are very bright (F200W$\sim26$ AB mag) and exhibit blue SEDs with prominent Ly$α$ breaks. In the source plane, the Misty Moons is a sub-$L^*$ galaxy ($M_{\rm UV}\sim-18.0$ mag) resolved into multiple stellar clumps, each of which has an effective radius of $r_\mathrm{eff}\sim 10-70$ pc and a stellar mass of $\sim10^7\ M_\odot$. These clumps dominate the stellar mass budget of the Misty Moons ($\gtrsim80\%$), similar to other high-$z$ clumps, which suggests a highly clustered mode of star formation in the early Universe, unlike seen in local dwarf galaxies. We convolve the source-plane image with the JWST/NIRCam point-spread function to produce a mock NIRCam image of the Misty Moons without lensing magnification, and find that the intrinsic galaxy has a radial surface-brightness profile comparable to those of $z\gtrsim10$ faint galaxies, such as JADES-GS-z13-0 and JADES-GS-z14-1, indicating that the Misty Moons represents a typical $z\gtrsim10$ faint galaxy. The Misty Moons, a lensed galaxy with resolved internal structures, provides an ideal laboratory for exploring the early stages of galaxy formation at $z\gtrsim10$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_14483 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | VENUS: A Strongly Lensed Clumpy Galaxy at $z\sim11-12$ behind the Galaxy Cluster MACS J0257.1-2325 Nakane, Minami Kokorev, Vasily Fujimoto, Seiji Ouchi, Masami McLeod, Derek J. Golubchik, Miriam Oguri, Masamune Zitrin, Adi Bondestam, Cecilia Donnan, Callum T. Brammer, Gabriel Finkelstein, Steven L. Willott, Chris Rihtarsic, Gregor Desprez, Guillaume Adamo, Angela Vanzella, Eros Bradač, Maruša Messa, Matteo Yanagisawa, Hiroto Sun, Fengwu Ferguson, Henry C. Lucas, Ray A. Coe, Dan Richard, Johan Abdurro'uf Akins, Hollis B. Allingham, Joseph F. V. Amorín, Ricardo O. Asada, Yoshihisa Atek, Hakim Bezanson, Rachel Bradley, Larry D. Chisholm, John Conselice, Christopher J. Dayal, Pratika Dessauges-Zavadsky, Miroslava Diego, Jose M. Faisst, Andreas L. Fei, Qinyue Frye, Brenda L. Fudamoto, Yoshinobu Furtak, Lukas J. Harikane, Yuichi Hsiao, Tiger Yu-Yang Jiménez-Teja, Yolanda Kartaltepe, Jeyhan S. Kiyota, Tomokazu Koekemoer, Anton M. Lagos, Claudia del P. Magdis, Georgios E. Meena, Ashish Kumar Mowla, Lamiya Noirot, Gaël Oesch, Pascal A. Ono, Yoshiaki Ortiz III, Rafael Pan, Richard Papovich, Casey Pierel, Justin D. Ricotti, Massimo Robbins, Luke Schaerer, Daniel Schneider, Raffaella Treu, Tommaso Valentino, Francesco Windhorst, Rogier A. Bauer, Franz E. Bromm, Volker Egami, Eiichi González-Otero, Mauro Kohno, Kotaro Labbe, Ivo Matthee, Jorryt Mun, Marcie Naidu, Rohan P. Tripodi, Roberta Astrophysics of Galaxies We present the discovery of a strongly lensed galaxy at $z\sim11-12$, dubbed the ``Misty Moons'', identified in the JWST Treasury Survey, Vast Exploration for Nascent, Unexplored Sources (VENUS). The Misty Moons is gravitationally lensed by the galaxy cluster MACS J0257.1-2325 at $z=0.505$, and has five multiple images suggested by two independent lensing models. Two of the five images, ID1 and ID2 ($μ\sim 20-30$), are very bright (F200W$\sim26$ AB mag) and exhibit blue SEDs with prominent Ly$α$ breaks. In the source plane, the Misty Moons is a sub-$L^*$ galaxy ($M_{\rm UV}\sim-18.0$ mag) resolved into multiple stellar clumps, each of which has an effective radius of $r_\mathrm{eff}\sim 10-70$ pc and a stellar mass of $\sim10^7\ M_\odot$. These clumps dominate the stellar mass budget of the Misty Moons ($\gtrsim80\%$), similar to other high-$z$ clumps, which suggests a highly clustered mode of star formation in the early Universe, unlike seen in local dwarf galaxies. We convolve the source-plane image with the JWST/NIRCam point-spread function to produce a mock NIRCam image of the Misty Moons without lensing magnification, and find that the intrinsic galaxy has a radial surface-brightness profile comparable to those of $z\gtrsim10$ faint galaxies, such as JADES-GS-z13-0 and JADES-GS-z14-1, indicating that the Misty Moons represents a typical $z\gtrsim10$ faint galaxy. The Misty Moons, a lensed galaxy with resolved internal structures, provides an ideal laboratory for exploring the early stages of galaxy formation at $z\gtrsim10$. |
| title | VENUS: A Strongly Lensed Clumpy Galaxy at $z\sim11-12$ behind the Galaxy Cluster MACS J0257.1-2325 |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2511.14483 |