Results 31 to 40 of about 103,015 (280)

Early Results From GLASS-JWST. XII. The Morphology of Galaxies at the Epoch of Reionization

The Astrophysical Journal Letters, 2023
Star-forming galaxies can exhibit strong morphological differences between the rest-frame far-UV and optical, reflecting inhomogeneities in star formation and dust attenuation.
T. Treu, A. Calabrò, M. Castellano, N. Leethochawalit, E. Merlin, A. Fontana, L. Yang, T. Morishita, M. Trenti, A. Dressler, C. Mason, D. Paris, L. Pentericci, G. Roberts-Borsani, B. Vulcani, K. Boyett, M. Bradac, K. Glazebrook, T. Jones, D. Marchesini, S. Mascia, T. Nanayakkara, P. Santini, V. Strait, E. Vanzella, X. Wang   +25 more
doaj   +1 more source

RECONCILING THE STELLAR AND NEBULAR SPECTRA OF HIGH-REDSHIFT GALAXIES [PDF]

, 2016
We present a combined analysis of rest-frame far-UV (FUV; 1000–2000 Å) and rest-frame optical (3600–7000 Å) composite spectra formed from very deep Keck/LRIS and Keck/MOSFIRE observations of a sample of 30 star-forming galaxies with , selected to be ...
C. Steidel, A. Strom, M. Pettini, G. Rudie, N. Reddy, R. Trainor   +5 more
semanticscholar   +1 more source

Decomposition of the central structure of NGC 2273 in the NIR: A case study

Astronomische Nachrichten, Volume 344, Issue 10, December 2023., 2023
Abstract The Seyfert 2 galaxy NGC 2273 is a prime target to explore how active nuclei can be fed. It has a star‐forming innermost nuclear ring with a radius of 0.33kpc from where material may be funneled to the supermassive black hole in its center. In this article, we discuss high‐resolution adaptive optics aided JHKs images of NGC 2273 taken with the
L. Schey, J. Heidt, A. Pramskiy, D. Thompson, G. Agapito, S. Esposito, R. Gredel, D. Miller, E. Pinna, A. Puglisi, F. Rossi, W. Seifert, G. Taylor, A. Quirrenbach   +13 more
wiley   +1 more source

Searching for high-z DSFGs with NIKA2 and NOEMA [PDF]

EPJ Web of Conferences, 2022
As the possible progenitors of passive galaxies at z=2-3, dusty starforming galaxies (DSFGs) at z>4 provide a unique perspective to study the formation, assembly, and early quenching of massive galaxies in the early Universe.
Bing L., Adam R., Ade P., Ajeddig H., André P., Artis E., Aussel H., Beelen A., Benoît A., Berta S., Béthermin M., Bourrion O., Calvo M., Catalano A., De Petris M., Désert F.-X., Doyle S., Driessen E. F. C., Gomez A., Goupy J., Kéruzoré F., Kramer C., Ladjelate B., Lagache G., Leclercq S., Lestrade J.-F., Macías-Pérez J.-F., Maury A., Mauskopf P., Mayet F., Monfardini A., Muñoz-Echeverría M., Neri R., Omont A., Perotto L., Pisano G., Ponthieu N., Revéret V., Rigby A.J., Ritacco A., Romero C., Roussel H., Ruppin F., Schuster K., Shu S., Sievers A., Tucker C., Zylka R.   +47 more
doaj   +1 more source

PAWS and POCO: NIR Astrophotonic Instruments for Astronomy

Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023
Abstract For near‐infrared ground and space‐based astronomy, compact photonic devices can replace the large bulk optical components in spectrographs, frequency combs, beam combiners, and sky subtraction filters, thus saving cost, reducing volume, weight, and power requirements.
Kalaga Madhav, Alan Günther, Eloy Hernandez, Stella Vjes̆nica, Daniel Bodenmüller, Andreas Stoll, Christer Sandin, Haydar Altuğ Yıldırım, Martin M. Roth   +8 more
wiley   +1 more source

Self-consistent proto-globular cluster formation in cosmological simulations of high-redshift galaxies [PDF]

Monthly notices of the Royal Astronomical Society, 2019
We report the formation of bound star clusters in a sample of high-resolution cosmological zoom-in simulations of z ≥ 5 galaxies from the Feedback In Realistic Environments project.
Xiangcheng Ma, Michael Y. Grudić, E. Quataert, P. Hopkins, C. Faucher-Giguére, M. Boylan-Kolchin, A. Wetzel, Ji-hoon Kim, N. Murray, D. Keres̆   +9 more
semanticscholar   +1 more source

Fluctuating feedback-regulated escape fraction of ionizing radiation in low-mass, high-redshift galaxies [PDF]

, 2017
Low mass galaxies are thought to provide the bulk of the ionizing radiation necessary to reionize the Universe. The amount of photons escaping the galaxies is poorly constrained theoretically, and difficult to measure observationally.
M. Trebitsch, J. Blaizot, J. Rosdahl, J. Devriendt, A. Slyz   +4 more
semanticscholar   +1 more source

High-Redshift Radio Galaxies [PDF]

Highlights of Astronomy, 1995
Radio galaxies are unique cosmological probes. As with radio-loud quasars, the presence of luminous radio continuum and optical line emission enable radio galaxies to be observed and recognized at large distances, up to z = 4.2. However, unlike the situation for most quasars, their optical emission can be spatially resolved from the ground and studied ...
openaire   +3 more sources

ZEN and the search for high-redshift galaxies [PDF]

New Astronomy Reviews, 2006
To appear in proceedings of UC Irvine May 2005 workshop on "First Light & Reionization", eds. E. Barton & A.
Willis, J. P., Courbin, F., Kneib, J-P., Minniti, D.   +3 more
openaire   +4 more sources

Nearly all the sky is covered by Lyman-α emission around high-redshift galaxies [PDF]

Nature, 2018
Galaxies are surrounded by large reservoirs of gas, mostly hydrogen, that are fed by inflows from the intergalactic medium and by outflows from galactic winds.
L. Wisotzki, R. Bacon, J. Brinchmann, J. Brinchmann, S. Cantalupo, P. Richter, J. Schaye, K. Schmidt, T. Urrutia, P. Weilbacher, M. Akhlaghi, N. Bouché, T. Contini, B. Guiderdoni, E. C. Herenz, H. Inami, J. Kerutt, F. Leclercq, R. Marino, M. Maseda, A. Monreal-Ibero, A. Monreal-Ibero, T. Nanayakkara, J. Richard, R. Saust, M. Steinmetz, M. Wendt   +26 more
semanticscholar   +1 more source