Zobrazeno 1 - 10
of 1 521
pro vyhledávání: '"Koo, D"'
Autor:
Varma, S., Huertas-Company, M., Pillepich, A., Nelson, D., Rodriguez-Gomez, V., Dekel, A., Faber, S. M., Iglesias-Navarro, P., Koo, D. C., Primack, J.
[abridged] We study how mock-observed stellar morphological and structural properties of massive galaxies are built up between $z=0.5$ and $z=3$ in the TNG50 cosmological simulation. We generate mock images with the properties of the CANDELS survey a
Externí odkaz:
http://arxiv.org/abs/2110.11989
Autor:
Huertas-Company, M., Guo, Y., Ginzburg, O., Lee, C. T., Mandelker, N., Metter, M., Primack, J. R., Dekel, A., Ceverino, D., Faber, S. M., Koo, D. C., Koekemoer, A., Snyder, G., Giavalisco, M., Zhang, H.
A significant fraction of high redshift star-forming disc galaxies are known to host giant clumps, whose nature and role in galaxy evolution are yet to be understood. In this work we first present a new method based on neural networks to detect clump
Externí odkaz:
http://arxiv.org/abs/2006.14636
Autor:
Huertas-Company, M., Primack, J. R., Dekel, A., Koo, D. C., Lapiner, S., Ceverino, D., Simons, R. C., Snyder, G. F., Bernardi, M., Chen, Z., Domínguez-Sánchez, H., Lee, C. T., Margalef-Bentabol, B., Tuccillo, D.
We use machine learning to identify in color images of high-redshift galaxies an astrophysical phenomenon predicted by cosmological simulations. This phenomenon, called the blue nugget (BN) phase, is the compact star-forming phase in the central regi
Externí odkaz:
http://arxiv.org/abs/1804.07307
Autor:
Barro, G., Kriek, M., Perez-Gonzalez, P. G., Diaz-Santos, T., Price, S. H., Rujopakarn, W., Pandya, V., Koo, D. C., Faber, S. M., Dekel, A., Primack, J. R., Kocevski, D. D.
We present high spatial resolution (FWHM$\sim$0.14'') observations of the CO($8-7$) line in GDS-14876, a compact star-forming galaxy at $z=2.3$ with total stellar mass of $\log(M_{\star}/M_{\odot})=10.9$. The spatially resolved velocity map of the in
Externí odkaz:
http://arxiv.org/abs/1712.01283
Autor:
Barro, G., Kriek, M., Pérez-González, P. G., Trump, J. R., Koo, D. C., Faber, S. M., Dekel, A., Primack, J. R., Guo, Y., Kocevski, D. D., Muñoz-Mateos, J. C., Rujoparkarn, W., Sheth, K.
We present spatially-resolved Atacama Large Millimeter/sub-millimeter Array (ALMA) 870 $\mu$m dust continuum maps of six massive, compact, dusty star-forming galaxies (SFGs) at $z\sim2.5$. These galaxies are selected for their small rest-frame optica
Externí odkaz:
http://arxiv.org/abs/1607.01011
Autor:
Huertas-Company, M., Bernardi, M., Pérez-González, P. G., Ashby, M. L. N., Barro, G., Conselice, C., Daddi, E., Dekel, A., Dimauro, P., Faber, S. M., Grogin, N. A., Kartaltepe, J. S., Kocevski, D. D., Koekemoer, A. M., Koo, D. C., Mei, S., Shankar, F.
[abridged] We quantify the evolution of the stellar mass functions of star-forming and quiescent galaxies as a function of morphology from $z\sim 3$ to the present. Our sample consists of ~50,000 galaxies in the CANDELS fields ($\sim880$ $arcmin^2$),
Externí odkaz:
http://arxiv.org/abs/1606.04952
Autor:
Wang, T., Elbaz, D., Schreiber, C., Pannella, M., Shu, X., Willner, S. P., Ashby, M. L. N., Huang, J. -S., Fontana, A., Dekel, A., Daddi, E., Ferguson, H. C., Dunlop, J., Ciesla, L., Koekemoer, A. M., Giavalisco, M., Boutsia, K., Finkelstein, S., Juneau, S., Barro, G., Koo, D. C., Michałowski, M. J., Orellana, G., Lu, Y., Castellano, M., Bourne, N., Buitrago, F., Santini, P., Faber, S. M., Hathi, N., Lucas, R. A., Pérez-González, P. G.
Publikováno v:
ApJ. 816 (2016) 2
We introduce a new color-selection technique to identify high-redshift, massive galaxies that are systematically missed by Lyman-break selection. The new selection is based on the H_{160} and IRAC 4.5um bands, specifically H - [4.5] > 2.25 mag. These
Externí odkaz:
http://arxiv.org/abs/1512.02656
Autor:
Huertas-Company, M., Gravet, R., Cabrera-Vives, G., Pérez-González, P. G., Kartaltepe, J. S., Barro, G., Bernardi, M., Mei, S., Shankar, F., Dimauro, P., Bell, E. F., Kocevski, D., Koo, D. C., Faber, S. M., Mcintosh, D. H.
We present a catalog of visual like H-band morphologies of $\sim50.000$ galaxies ($H_{f160w}<24.5$) in the 5 CANDELS fields (GOODS-N, GOODS-S, UDS, EGS and COSMOS). Morphologies are estimated with Convolutional Neural Networks (ConvNets). The median
Externí odkaz:
http://arxiv.org/abs/1509.05429
Autor:
Barro, G., Faber, S. M., Koo, D. C., Dekel, A., Fang, J. J., Trump, J. R., Perez-Gonzalez, P. G., Pacifici, C., Primack, J. R., Somerville, R. S., Yan, H., Guo, Y., Liu, F., Ceverino, D., Kocevski, D. D., McGrath, E.
We study the evolution of the core (r<1 kpc) and effective (r
Externí odkaz:
http://arxiv.org/abs/1509.00469
Autor:
Nandra, K., Laird, E. S., Aird, J. A., Salvato, M., Georgakakis, A., Barro, G., Gonzalez, P. G. Perez, Barmby, P., Chary, R. -R., Coil, A., Cooper, M. C., Davis, M., Dickinson, M., Faber, S. M., Fazio, G. G., Guhathakurta, P., Gwyn, S., Hsu, L. -T., Huang, J. -S., Ivison, R. J., Koo, D. C., Newman, J. A., Rangel, C., Yamada, T., Willmer, C.
We present the results of deep \chandra\ imaging of the central region of the Extended Groth Strip, the AEGIS-X Deep (AEGIS-XD) survey. When combined with previous \chandra\ observations of a wider area of the strip, AEGIS-X Wide (AEGIS-XW; Laird et~
Externí odkaz:
http://arxiv.org/abs/1503.09078