Zobrazeno 1 - 10
of 1 160
pro vyhledávání: '"P. Ricotti"'
Autor:
Stiavelli, Massimo, Morishita, Takahiro, Chiaberge, Marco, Leethochawalit, Nicha, Norman, Colin, Ricotti, Massimo, Roberts-Borsani, Guido, Treu, Tommaso, Vanzella, Eros, Wyse, Rosemary F. G., Zhang, Yechi, Boyett, Kit
We present measurements of the gas-phase Oxygen and Nitrogen abundances obtained by applying the direct method to JWST NIRspec $R\sim1000$ spectroscopy for 6 galaxies at redshift greater than 3. Our measurements are based on rest-frame optical Nitrog
Externí odkaz:
http://arxiv.org/abs/2412.06517
Autor:
Messa, Matteo, Vanzella, E., Loiacono, F., Bergamini, P., Castellano, M., Sun, B., Willott, C., Windhorst, R. A., Yan, H., Angora, G., Rosati, P., Adamo, A., Annibali, F., Bolamperti, A., Bradač, M., Bradley, L. D., Calura, F., Claeyssens, A., Comastri, A., Conselice, C. J., D'Silva, J. C. J., Dickinson, M., Frye, B. L., Grillo, C., Grogin, N. A., Gruppioni, C., Koekemoer, A. M., Meneghetti, M., Meštrić, U., Pascale, R., Ravindranath, S., Ricotti, M., Summers, J., Zanella, A.
We present a detailed JWST/NIRSpec and NIRCam analysis of a gravitationally-lensed galaxy ($\rm \mu=17-21$) at redshift 6.14 magnified by the Hubble Frontier Field galaxy cluster MACS J0416. The target galaxy is overall a typical compact and UV-faint
Externí odkaz:
http://arxiv.org/abs/2407.20331
Autor:
Vanzella, E., Loiacono, F., Messa, M., Castellano, M., Bergamini, P., Zanella, A., Annibali, F., Sun, B., Dickinson, M., Adamo, A., Calura, F., Ricotti, M., Rosati, P., Meneghetti, M., Grillo, C., Bradac, M., Conselice, C. J., Yan, H., Bolamperti, A., Mestric, U., Gilli, R., Gronke, M., Willott, C., Sani, E., Acebron, A., Comastri, A., Mignoli, M., Gruppioni, C., Mercurio, A., Strait, V., Pascale, R., Annunziatella, M., Frye, B. L., Bradley, L. D., Grogin, N. A., Koekemoer, A. M., Ravindranath, S., D'Silva, J. C. J., Summers, J., Rihtar, G., Windhorst, R.
Publikováno v:
A&A 691, A251 (2024)
We report the serendipitous discovery of a faint (M_UV > -12.2), low-metallicity (Z ~ 0.02 Zsun), ionizing source (dubbed T2c) with a spectroscopic redshift of z=6.146. T2c is part of a larger structure amplified by the Hubble Frontier Field galaxy c
Externí odkaz:
http://arxiv.org/abs/2407.20327
Autor:
Nabizadeh, Armin, Zackrisson, Erik, Lundqvist, Emma, Ricotti, Massimo, Park, Seyong, Welch, Brian, Diego, Jose M.
Observations of gravitationally lensed, high-mass stars at redshifts $\gtrsim1$ occasionally reveal spectral energy distributions that contain two components with different effective temperatures. Given that two separate stars are involved, it sugges
Externí odkaz:
http://arxiv.org/abs/2406.12607
Autor:
Abdurro'uf, Larson, Rebecca L., Coe, Dan, Hsiao, Tiger Yu-Yang, Álvarez-Márquez, Javier, Gómez, Alejandro Crespo, Adamo, Angela, Bhatawdekar, Rachana, Bik, Arjan, Bradley, Larry D., Conselice, Christopher J., Dayal, Pratika, Diego, Jose M., Fujimoto, Seiji, Furtak, Lukas J., Hutchison, Taylor A., Jung, Intae, Killi, Meghana, Kokorev, Vasily, Mingozzi, Matilde, Norman, Colin, Resseguier, Tom, Ricotti, Massimo, Rigby, Jane R., Vanzella, Eros, Welch, Brian, Windhorst, Rogier A., Xu, Xinfeng, Zitrin, Adi
We present JWST/NIRSpec high-resolution spectroscopy G395H/F290LP of MACS0647-JD, a gravitationally lensed galaxy merger at $z=10.167$. The new spectroscopy, which is acquired for the two lensed images (JD1 and JD2), detects and resolves emission lin
Externí odkaz:
http://arxiv.org/abs/2404.16201
Autor:
Hsiao, Tiger Yu-Yang, Álvarez-Márquez, Javier, Coe, Dan, Gómez, Alejandro Crespo, Abdurro'uf, Dayal, Pratika, Larson, Rebecca L., Bik, Arjan, Blanco-Prieto, Carmen, Colina, Luis, Pérez-González, Pablo Guillermo, Costantin, Luca, Prieto-Jiménez, Carlota, Adamo, Angela, Bradley, Larry D., Conselice, Christopher J., Fujimoto, Seiji, Furtak, Lukas J., Hutchison, Taylor A., James, Bethan L., Jiménez-Teja, Yolanda, Jung, Intae, Kokorev, Vasily, Mingozzi, Matilde, Norman, Colin, Ricotti, Massimo, Rigby, Jane R., Sharon, Keren, Vanzella, Eros, Welch, Brian, Xu, Xinfeng, Zackrisson, Erik, Zitrin, Adi
JWST spectroscopy has revolutionized our understanding of galaxies in the early universe. Covering wavelengths up to $5.3\,{\rm \mu m}$, NIRSpec can detect rest-frame optical emission lines H$\alpha$ out to $z = 7$ and [O III] to $z = 9.5$. Observing
Externí odkaz:
http://arxiv.org/abs/2404.16200
Autor:
Bradley, Larry D., Adamo, Angela, Vanzella, Eros, Sharon, Keren, Brammer, Gabriel, Coe, Dan, Diego, Jose M., Kokorev, Vasily, Mahler, Guillaume, Oguri, Masamune, Abdurro'uf, Bhatawdekar, Rachana, Christensen, Lise, Fujimoto, Seiji, Hashimoto, Takuya, Hsiao, Tiger Y. -Y, Inoue, Akio K., Jiménez-Teja, Yolanda, Messa, Matteo, Norman, Colin, Ricotti, Massimo, Tamura, Yoichi, Windhorst, Rogier A., Xu, Xinfeng, Zitrin, Adi
We present recent JWST NIRCam imaging observations of SPT0615-JD (also known as the Cosmic Gems Arc), lensed by the galaxy cluster SPT-CL J0615-5746. The 5-arcsec-long arc is the most highly magnified $z>10$ galaxy known, straddling the lensing criti
Externí odkaz:
http://arxiv.org/abs/2404.10770
Autor:
He, Chong-Chong, Ricotti, Massimo
The formation of circumstellar discs is a critical step in the formation of stars and planets. Magnetic fields can strongly affect the evolution of angular momentum during prestellar core collapse, potentially leading to the failure of protostellar d
Externí odkaz:
http://arxiv.org/abs/2403.09779
Autor:
Sugimura, Kazuyuki, Ricotti, Massimo, Park, Jongwon, Garcia, Fred Angelo Batan, Yajima, Hidenobu
Publikováno v:
ApJ, 970, 14 (2024)
JWST observations of galaxies at $z\gtrsim 8$ suggest that they are more luminous and clumpier than predicted by most models, prompting several proposals on the physics of star formation and feedback in the first galaxies. In this paper, we focus on
Externí odkaz:
http://arxiv.org/abs/2403.04824
Autor:
Adamo, Angela, Bradley, Larry D., Vanzella, Eros, Claeyssens, Adélaïde, Welch, Brian, Diego, Jose M, Mahler, Guillaume, Oguri, Masamune, Sharon, Keren, Abdurro'uf, Hsiao, Tiger Yu-Yang, Xu, Xinfeng, Messa, Matteo, Lassen, Augusto E., Zackrisson, Erik, Brammer, Gabriel, Coe, Dan, Kokorev, Vasily, Ricotti, Massimo, Zitrin, Adi, Fujimoto, Seiji, Inoue, Akio K., Resseguier, Tom, Rigby, Jane R., Jiménez-Teja, Yolanda, Windhorst, Rogier A., Hashimoto, Takuya, Tamura, Yoichi
The Cosmic Gems arc is among the brightest and highly magnified galaxies observed at redshift $z\sim10.2$. However, it is an intrinsically UV faint galaxy, in the range of those now thought to drive the reionization of the Universe. Hitherto the smal
Externí odkaz:
http://arxiv.org/abs/2401.03224