Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Nordon, Raanan"'
Autor:
Nordon, Raanan
The gas in galaxies is both the fuel for star formation and a medium that attenuates the light of the young stars. We study the relations between UV attenuation, spectral slope, star formation rates, and molecular gas surface densities in a sample of
Externí odkaz:
http://arxiv.org/abs/1611.09938
Autor:
Pović, Mirjana, Márquez, Isabel, Netzer, Hagai, Masegosa, Josefa, Nordon, Raanan, Pérez, Enrique, Schoenell, William
This work presents the properties of 42 objects in the group of the most luminous, highest star formation rate LINERs at z = 0.04 - 0.11. We obtained long-slit spectroscopy of the nuclear regions for all sources, and FIR data (Herschel and IRAS) for
Externí odkaz:
http://arxiv.org/abs/1607.03915
Autor:
Nordon, Raanan, Sternberg, Amiel
We present analytic theory for the total column density of singly ionized carbon (C+) in the optically thick photon dominated regions (PDRs) of far-UV irradiated (star-forming) molecular clouds. We derive a simple formula for the C+ column as a funct
Externí odkaz:
http://arxiv.org/abs/1603.02300
Autor:
Netzer, Hagai, Lani, Caterina, Nordon, Raanan, Trakhtenbrot, Benny, Lira, Paulina, Shemmer, Ohad
We report herschel observations of 100 very luminous, optically selected AGNs at z=2-3.5 with log(LUV)(erg/sec)> 46.5, where LUV=L1350A. The distribution in LUV is similar to the general distribution of SDSS AGNs in this redshift and luminosity inter
Externí odkaz:
http://arxiv.org/abs/1511.07876
Autor:
Saintonge, Amelie, Lutz, Dieter, Genzel, Reinhard, Magnelli, Benjamin, Nordon, Raanan, Tacconi, Linda J., Baker, Andrew J., Bandara, Kaushala, Berta, Stefano, Schreiber, Natascha M. Forster, Poglitsch, Albrecht, Sturm, Eckhard, Wuyts, Eva, Wuyts, Stijn
Publikováno v:
ApJ, 778, 2 (2013)
We combine IRAM Plateau de Bure Interferometer and Herschel PACS and SPIRE measurements to study the dust and gas contents of high-redshift star forming galaxies. We present new observations for a sample of 17 lensed galaxies at z=1.4-3.1, which allo
Externí odkaz:
http://arxiv.org/abs/1309.3281
Elemental abundance effects in active coronae have eluded our understanding for almost three decades, since the discovery of the First Ionization Potential (FIP) effect on the sun. The goal of this paper is to monitor the same coronal structures over
Externí odkaz:
http://arxiv.org/abs/1212.0214
Autor:
Tommasin, Silvia, Netzer, Hagai, Sternberg, Amiel, Nordon, Raanan, Lutz, Dieter, Bongiorno, Angela, Berta, Stefano, Magnelli, Benjamin, Floc'h, Emeric Le, Riguccini, Laurie, Pozzi, Francesca
We present the results of a Herschel-PACS study of a sample of 97 LINERs at redshift z\sim 0.3 selected from the zCOSMOS survey. Of these sources, 34 are detected in a least one PACS band, enabling reliable estimates of the far-infrared L(FIR) lumino
Externí odkaz:
http://arxiv.org/abs/1201.3792
Autor:
Wuyts, Stijn, Schreiber, Natascha M. Forster, van der Wel, Arjen, Magnelli, Benjamin, Guo, Yicheng, Genzel, Reinhard, Lutz, Dieter, Aussel, Herve, Barro, Guillermo, Berta, Stefano, Cava, Antonio, Gracia-Carpio, Javier, Hathi, Nimish P., Huang, Kuang-Han, Kocevski, Dale D., Koekemoer, Anton M., Lee, Kyoung-Soo, Floc'h, Emeric Le, McGrath, Elizabeth J., Nordon, Raanan, Popesso, Paola, Pozzi, Francesca, Riguccini, Laurie, Rodighiero, Giulia, Saintonge, Amelie, Tacconi, Linda
We analyze the dependence of galaxy structure (size and Sersic index) and mode of star formation (\Sigma_SFR and SFR_IR/SFR_UV) on the position of galaxies in the SFR versus Mass diagram. Our sample comprises roughly 640000 galaxies at z~0.1, 130000
Externí odkaz:
http://arxiv.org/abs/1107.0317
Autor:
Wuyts, Stijn, Schreiber, Natascha M. Forster, Lutz, Dieter, Nordon, Raanan, Berta, Stefano, Altieri, Bruno, Andreani, Paola, Aussel, Herve, Bongiovanni, Angel, Cepa, Jordi, Cimatti, Andrea, Daddi, Emanuele, Elbaz, David, Genzel, Reinhard, Koekemoer, Anton M., Magnelli, Benjamin, Maiolino, Roberto, McGrath, Elizabeth J., Garcia, Ana Perez, Poglitsch, Albrecht, Popesso, Paola, Pozzi, Francesca, Sanchez-Portal, Miguel, Sturm, Eckhard, Tacconi, Linda, Valtchanov, Ivan
We compare multi-wavelength SFR indicators out to z~3 in GOODS-South. Our analysis uniquely combines U-to-8um photometry from FIREWORKS, MIPS 24um and PACS 70, 100, and 160um photometry from the PEP survey, and Ha spectroscopy from the SINS survey. W
Externí odkaz:
http://arxiv.org/abs/1106.5502
Publikováno v:
Astrophys.J.695:834-843,2009
X-rays from planetary nebulae (PNs) are believed to originate from a shock driven into the fast stellar wind (v ~ 1000 km/s) as it collides with an earlier circumstellar slow wind (v ~ 10 km/s). In theory, the shocked fast wind (hot bubble) and the a
Externí odkaz:
http://arxiv.org/abs/0901.1039