Zobrazeno 1 - 10
of 309
pro vyhledávání: '"Bradač, M"'
Autor:
Kelly, P. L., Brammer, G., Selsing, J., Foley, R. J., Hjorth, J., Rodney, S. A., Christensen, L., Strolger, L.-G., Filippenko, A. V., Treu, T., Steidel, C. C., Strom, A., Riess, A. G., Zitrin, A., Schmidt, K. B., Bradac, M., Jha, S. W., Graham, M. L., McCully, C., Graur, O., Weiner, B. J., Silverman, J. M., Taddia, F.
We have acquired Hubble Space Telescope (HST) and Very Large Telescope near-infrared spectra and images of supernova (SN) Refsdal after its discovery as an Einstein cross in fall 2014. The HST light curve of SN Refsdal has a shape consistent with the
Externí odkaz:
http://hdl.handle.net/10150/624069
http://arizona.openrepository.com/arizona/handle/10150/624069
http://arizona.openrepository.com/arizona/handle/10150/624069
Autor:
Mascia, S., Roberts-Borsani, G., Treu, T., Pentericci, L., Chen, W., Calabrò, A., Merlin, E., Paris, D., Santini, P., Brammer, G., Henry, A., Kelly, P. L., Mason, C., Morishita, T., Nanayakkara, T., Roy, N., Wang, X., Williams, H., Boyett, K., Bradač, M., Castellano, M., Glazebrook, K., Jones, T., Napolitano, L., Vulcani, B., Watson, P. J., Yang, L.
We release fully reduced spectra obtained with NIRSpec onboard JWST as part of the GLASS-JWST Early Release Science Program and a follow-up Director's Discretionary Time program 2756. From these 263 spectra of 245 unique sources, acquired with low ($
Externí odkaz:
http://arxiv.org/abs/2408.16675
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:
Vanzella, E., Loiacono, F., Bergamini, P., Mestric, U., Castellano, M., Rosati, P., Meneghetti, M., Grillo, C., Calura, F., Mignoli, M., Bradac, M., Adamo, A., Rihtarsic, G., Dickinson, M., Gronke, M., Zanella, A., Annibali, F., Willott, C., Messa, M., Sani, E., Acebron, A., Bolamperti, A., Comastri, A., Gilli, R., Caputi, K. I., Ricotti, M., Gruppioni, C., Ravindranath, S., Mercurio, A., Strait, V., Martis, N., Pascale, R., Caminha, G. B., Annunziatella, M.
Publikováno v:
A&A 678, A173 (2023)
We present JWST/NIRSpec integral field spectroscopy (IFS) of a lensed Population III candidate stellar complex (dubbed Lensed And Pristine 1, LAP1), with a lensing-corrected stellar mass ~<10^4 Msun, absolute luminosity M_UV > -11.2 (m_UV > 35.6), co
Externí odkaz:
http://arxiv.org/abs/2305.14413
Autor:
Mascia, S., Pentericci, L., Calabro', A., Treu, T., Santini, P., Yang, L., Napolitano, L., Roberts-Borsani, G., Bergamini, P., Grillo, C., Rosati, P., Vulcani, B., Castellano, M., Boyett, K., Fontana, A., Glazebrook, K., Henry, A., Mason, C., Merlin, E., Morishita, T., Nanayakkara, T., Paris, D., Roy, N., Williams, H., Wang, X., Brammer, G., Bradac, M., Chen, W., Kelly, P. L., Koekemoer, A. M., Trenti, M., Windhorst, R. A.
Publikováno v:
A&A 672, A155 (2023)
The escape fraction of Lyman-continuum (LyC) photons ($f_{esc}$) is a key parameter for determining the sources of cosmic reionization at $z\geq 6$. At these redshifts, owing to the opacity of the intergalactic medium, the LyC emission cannot be meas
Externí odkaz:
http://arxiv.org/abs/2301.02816
Autor:
Vanzella, E., Claeyssens, A., Welch, B., Adamo, A., Coe, D., Diego, J. M., Mahler, G., Khullar, G., Kokorev, V., Oguri, M., Ravindranath, S., Furtak, L. J., Hsiao, T. Yu-Yang, Abdurro'uf, Mandelker, N., Brammer, G., Bradley, L. D., Bradac, M., Conselice, C. J., Dayal, P., Nonino, M., Andrade-Santos, F., Windhorst, R. A., Pirzkal, N., Sharon, K., de Mink, S. E., Fujimoto, S., Zitrin, A., Eldridge, J. J., Norman, C.
Star cluster formation in the early universe and their contribution to reionization remains to date largely unconstrained. Here we present JWST/NIRCam imaging of the most highly magnified galaxy known at z ~ 6, the Sunrise arc. We identify six young
Externí odkaz:
http://arxiv.org/abs/2211.09839
Autor:
Vanzella, E., Castellano, M., Bergamini, P., Treu, T., Mercurio, A., Scarlata, C., Rosati, P., Grillo, C., Acebron, A., Caminha, G. B., Nonino, M., Nanayakkara, T., Roberts-Borsani, G., Bradac, M., Wang, X., Brammer, G., Strait, V., Vulcani, B., Mestric, U., Meneghetti, M., Calura, F., Henry, A., Zanella, A., Trenti, M., Boyett, K., Morishita, T., Calabro, A., Glazebrook, K., Marchesini, D., Birrer, S., Yang, L., Jones, T.
We investigate the blue and optical rest-frame sizes (lambda~2300A-4000A) of three compact star-forming regions in a galaxy at z=4 strongly lensed (x30, x45, x100) by the Hubble Frontier Field galaxy cluster A2744 using GLASS-ERS JWST/NIRISS imaging
Externí odkaz:
http://arxiv.org/abs/2208.00520
Autor:
Nonino, M., Glazebrook, K., Burgasser, A. J., Polenta, G., Morishita, T., Lepinzan, M., Castellano, M., Fontana, A., Merlin, E., Bonchi, A., Paris, D., Treu, T., Vulcani, B., Wang, X., Santini, P., Vanzella, E., Nanayakkara, T., Mercurio, A., Rosati, P., Grillo, C., Bradac, M.
We present the serendipitous discovery of a late T-type brown dwarf candidate in JWST NIRCam observations of the Early Release Science Abell 2744 parallel field. The discovery was enabled by the sensitivity of JWST at 4~$\mu$m wavelengths and the pan
Externí odkaz:
http://arxiv.org/abs/2207.14802
Autor:
Treu, T., Calabro, A., Castellano, M., Leethochawalit, N., Merlin, E., Fontana, A., Yang, L., Morishita, T., Trenti, M., Dressler, A., Mason, C., Paris, D., Pentericci, L., Roberts-Borsani, G., Vulcani, B., Boyett, K., Bradac, M., Glazebrook, K., Jones, T., Marchesini, D., Mascia, S., Nanayakkara, T., Santini, P., Strait, V., Vanzella, E., Wang, X.
Star-forming galaxies can exhibit strong morphological differences between the rest-frame far-UV and optical, reflecting inhomogeneities in star-formation and dust attenuation. We exploit deep, high resolution NIRCAM 7-band observations to take a fir
Externí odkaz:
http://arxiv.org/abs/2207.13527