Zobrazeno 1 - 10
of 185
pro vyhledávání: '"Shivaei, I"'
Autor:
Battisti, A. J., Shivaei, I., Park, H. -J., Decleir, M., Calzetti, D., Mathew, J., Wisnioski, E., da Cunha, Elisabete
The 2175{\AA} bump is a prominent absorption feature at ultraviolet (UV) wavelengths in dust extinction and attenuation curves. Understanding the relative strength of this feature is important for accurate dust corrections at both low- and high-redsh
Externí odkaz:
http://arxiv.org/abs/2412.03690
Autor:
Rinaldi, P., Bonaventura, N., Rieke, G. H., Alberts, S., Caputi, K. I., Baker, W. M., Baum, S., Bhatawdekar, R., Bunker, A. J., Carniani, S., Curtis-Lake, E., D'Eugenio, F., Egami, E., Ji, Z., Hainline, K., Helton, J. M., Lin, X., Lyu, J., Johnson, B. D., Ma, Z., Maiolino, R., Pérez-González, P. G., Rieke, M., Robertson, B. E., Shivaei, I., Stone, M., Sun, Y., Tacchella, S., Übler, H., Williams, C. C., Willmer, C. N. A., Willott, C., Zhang, J., Zhu, Y.
We analyze 99 photometrically selected Little Red Dots (LRDs) at z ~ 4-8 in the GOODS fields, leveraging ultra-deep JADES NIRCam short-wavelength (SW) data. We examine the morphology of 30 LRDs; the remaining 69 are predominantly compact, i.e. are st
Externí odkaz:
http://arxiv.org/abs/2411.14383
Autor:
Meyer, R. A., Oesch, P. A., Giovinazzo, E., Weibel, A., Brammer, G., Matthee, J., Naidu, R. P., Bouwens, R. J., Chisholm, J., Covelo-Paz, A., Fudamoto, Y., Maseda, M., Nelson, E., Shivaei, I., Xiao, M., Herard-Demanche, T., Illingworth, G. D., Kerutt, J., Kramarenko, I., Labbe, I., Leonova, E., Magee, D., Matharu, J., Lyon, G. Prieto, Reddy, N., Schaerer, D., Shapley, A., Stefanon, M., Wozniak, M. A., Wuyts, S.
We present the census of H$\beta$+[OIII] 4960,5008 \AA emitters at 6.8
Externí odkaz:
http://arxiv.org/abs/2405.05111
Autor:
Romano, M., Donevski, D., Junais, Nanni, A., Ginolfi, M., Jones, G. C., Shivaei, I., Lorenzon, G., Hamed, M., Salak, D., Sawant, P.
Publikováno v:
A&A 683, L9 (2024)
The evolution of dwarf galaxies is dramatically affected by gaseous and dusty outflows, which can easily deprive their interstellar medium of the material needed for the formation of new stars, simultaneously enriching their surrounding circumgalacti
Externí odkaz:
http://arxiv.org/abs/2402.17662
Autor:
Oesch, P. A., Brammer, G., Naidu, R. P., Bouwens, R. J., Chisholm, J., Illingworth, G. D., Matthee, J., Nelson, E., Qin, Y., Reddy, N., Shapley, A., Shivaei, I., van Dokkum, P., Weibel, A., Whitaker, K., Wuyts, S., Covelo-Paz, A., Endsley, R., Fudamoto, Y., Giovinazzo, E., Herard-Demanche, T., Kerutt, J., Kramarenko, I., Labbe, I., Leonova, E., Lin, J., Magee, D., Marchesini, D., Maseda, M., Mason, C., Matharu, J., Meyer, R. A., Neufeld, C., Lyon, G. Prieto, Schaerer, D., Sharma, R., Shuntov, M., Smit, R., Stefanon, M., Wyithe, J. S. B., Xiao, M.
We present the JWST Cycle 1 53.8hr medium program FRESCO, short for "First Reionization Epoch Spectroscopically Complete Observations". FRESCO covers 62 arcmin$^2$ in each of the two GOODS/CANDELS fields for a total area of 124 arcmin$^2$ exploiting
Externí odkaz:
http://arxiv.org/abs/2304.02026
Autor:
Robertson, B. E., Tacchella, S., Johnson, B. D., Hainline, K., Whitler, L., Eisenstein, D. J., Endsley, R., Rieke, M., Stark, D. P., Alberts, S., Dressler, A., Egami, E., Hausen, R., Rieke, G., Shivaei, I., Williams, C. C., Willmer, C. N. A., Arribas, S., Bonaventura, N., Bunker, A., Cameron, A. J., Carniani, S., Charlot, S., Chevallard, J., Curti, M., Curtis-Lake, E., D'Eugenio, F., Jakobsen, P., Looser, T. J., Lützgendorf, N., Maiolino, R., Maseda, M. V., Rawle, T., Rix, H. -W., Smit, R., Übler, H., Willott, C., Witstok, J., Baum, S., Bhatawdekar, R., Boyett, K., Chen, Z., de Graaff, A., Florian, M., Helton, J. M., Hviding, R. E., Ji, Z., Kumari, N., Lyu, J., Nelson, E., Sandles, L., Saxena, A., Suess, K. A., Sun, F., Topping, M., Wallace, I. E. B.
Surveys with James Webb Space Telescope (JWST) have discovered candidate galaxies in the first 400 Myr of cosmic time. Preliminary indications have suggested these candidate galaxies may be more massive and abundant than previously thought. However,
Externí odkaz:
http://arxiv.org/abs/2212.04480
Autor:
Álvarez-Márquez, J., Labiano, A., Guillard, P., Dicken, D., Argyriou, I., Patapis, P., Law, D. R., Kavanagh, P. J., Larson, K. L., Gasman, D., Mueller, M., Alberts, A., Brandl, B. R., Colina, L., García-Marín, M., Jones, O. C., Noriega-Crespo, A., Shivaei, I., Temim, T., Wright, G. S.
Publikováno v:
A&A 672, A108 (2023)
During the commissioning of the James Webb Space Telescope (JWST), the mid-infrared instrument (MIRI) observed NGC6552 with the MIRI Imager and the medium-resolution spectrograph (MRS). NGC6552 is an active galactic nucleus (AGN) at redshift 0.0266 c
Externí odkaz:
http://arxiv.org/abs/2209.01695
Autor:
Battisti, A. J., Bagley, M. B., Baronchelli, I., Dai, Y. -S., Henry, A. L., Malkan, M. A., Alavi, A., Calzetti, D., Colbert, J., McCarthy, P. J., Mehta, V., Rafelski, M., Scarlata, C., Shivaei, I., Wisnioski, E.
We present the first characterisation of the average dust attenuation curve at $z\sim1.3$ by combining rest-frame ultraviolet through near-IR photometry with Balmer decrement ($\mathrm{H}\alpha$/$\mathrm{H}\beta$) constraints for $\sim$900 galaxies w
Externí odkaz:
http://arxiv.org/abs/2204.05553
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We update the spectral modeling code MAGPHYS to include a 2175\AA\ absorption feature in its UV-to-near-IR dust attenuation prescription. This allows us to determine the strength of this feature and the shape of the dust attenuation curve in ~5000 st
Externí odkaz:
http://arxiv.org/abs/1912.05206