Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Papadopoulos, Padelis P."'
Autor:
Thi, Wing-Fai, Papadopoulos, Padelis
Broad Line Regions (BLRs) are known to contain gravitationally-bound gas within r~(few) 10^2-10^3 Schwarszchild radii (Rs) near supermassive black holes (SMBHs) in Active Galactic Nuclei (AGNs). Photo-ionized by strong non-stellar AGN continuum, this
Externí odkaz:
http://arxiv.org/abs/2407.07574
Publikováno v:
Phys. Rev. D 110, 024001 (2024)
Light-ring bifurcations that can occur for prolate non-Kerr compact objects can leave an indelible signature on SMBH shadows as a fractal sequence of eyebrow-like formations. These fractal features are the result of two properties of these spacetimes
Externí odkaz:
http://arxiv.org/abs/2405.09653
Autor:
Sun, Yichen, Zhang, Zhi-Yu, Wang, Junzhi, Lin, Lingrui, Papadopoulos, Padelis P., Romano, Donatella, Feng, Siyi, Sun, Yan, Zhang, Bo, Matteucci, Francesca
The variations of elemental abundance and their ratios along the Galactocentric radius result from the chemical evolution of the Milky Way disks. The $\rm ^{12}C/^{13}C$ ratio in particular is often used as a proxy to determine other isotopic ratios,
Externí odkaz:
http://arxiv.org/abs/2311.12971
Autor:
Lelli, Federico, Zhang, Zhi-Yu, Bisbas, Thomas G., Lin, Lingrui, Papadopoulos, Padelis, Schombert, James M., Di Teodoro, Enrico, Marasco, Antonino, McGaugh, Stacy S.
Publikováno v:
A&A 672, A106 (2023)
We study the dynamics of cold molecular gas in two main-sequence galaxies at cosmic noon (zC-488879 at $z\simeq1.47$ and zC-400569 at $z\simeq2.24$) using new high-resolution ALMA observations of multiple $^{12}$CO transitions. For zC-400569 we also
Externí odkaz:
http://arxiv.org/abs/2302.00030
We examine a sample of 106 galaxies for which the total luminosities of the two fine structure lines $^{3}P_1$$\rightarrow $$^{3}P_{0}$, and $^{3}P_2$$\rightarrow $$^{3}P_{1}$ of neutral atomic carbon (C) are available, and find their average excitat
Externí odkaz:
http://arxiv.org/abs/2111.02260
Autor:
Saintonge, Amelie, Wilson, Christine D., Xiao, Ting, Lin, Lihwai, Hwang, Ho Seong, Tosaki, Tomoka, Bureau, Martin, Cigan, Phillip J., Clark, Christopher J. R., Clements, David L., De Looze, Ilse, Dharmawardena, Thavisha, Gao, Yang, Gear, Walter K., Greenslade, Joshua, Lamperti, Isabella, Lee, Jong Chul, Li, Cheng, Michalowski, Michal J., Mok, Angus, Pan, Hsi-An, Sansom, Anne E., Sargent, Mark, Smith, Matthew W. L., Williams, Thomas, Yang, Chentao, Zhu, Ming, Accurso, Gioacchino, Barmby, Pauline, Bourne, Nathan, Brinks, Elias, Brown, Toby, Chung, Aeree, Chung, Eun Jung, Cibinel, Anna, Coppin, Kristen, Davies, Jonathan, Davis, Timothy A., Eales, Steve, Fanciullo, Lapo, Fang, Taotao, Gao, Yu, Glass, David H. W., Gomez, Haley L., Greve, Thomas, He, Jinhua, Ho, Luis C., Huang, Feng, Jeong, Hyunjin, Jiang, Xuejian, Jiao, Qian, Kemper, Francisca, Kim, Ji Hoon, Kim, Minjin, Kim, Taehyun, Ko, Jongwan, Kong, Xu, Lacaille, Kevin, Lacey, Cedric G., Lee, Bumhyun, Lee, Joon Hyeop, Lee, Wing-Kit, Masters, Karen, Oh, Se-Heon, Papadopoulos, Padelis, Park, Changbom, Park, Sung-Joon, Parsons, Harriet, Rowlands, Kate, Scicluna, Peter, Scudder, Jillian M., Sethuram, Ramya, Serjeant, Stephen, Shao, Yali, Sheen, Yun-Kyeong, Shi, Yong, Shim, Hyunjin, Smith, Connor M. A., Spekkens, Kristine, Tsai, An-Li, Urquhart, Sheona, Verma, Aprajita, Violino, Giulio, Viti, Serena, Wake, David, Wang, Junfeng, Wouterloot, Jan, Yang, Yujin, Yim, Kijeong, Yuan, Fangting, Zheng, Zheng
JINGLE is a new JCMT legacy survey designed to systematically study the cold interstellar medium of galaxies in the local Universe. As part of the survey we perform 850um continuum measurements with SCUBA-2 for a representative sample of 193 Herschel
Externí odkaz:
http://arxiv.org/abs/1809.07336
Autor:
Cicone, Claudia, Severgnini, Paola, Papadopoulos, Padelis P., Maiolino, Roberto, Feruglio, Chiara, Treister, Ezequiel, Privon, George C., Zhang, Zhi-yu, Della Ceca, Roberto, Fiore, Fabrizio, Schawinski, Kevin, Wagg, Jeff
We present ALMA and ACA [CI]$^{3}P_{1}-^{3}P_{0}$ ([CI](1-0)) observations of NGC6240, which we combine with ALMA CO(2-1) and IRAM PdBI CO(1-0) data to study the physical properties of the massive molecular (H$_2$) outflow. We discover that the reced
Externí odkaz:
http://arxiv.org/abs/1807.06015
In this work we extend the work on the recently discovered role of Cosmic Rays (CRs) in regulating the average CO/$\rm H_2$ abundance ratio in molecular clouds (and thus their CO line visibility) in starburst galaxies, and find that it can lead to a
Externí odkaz:
http://arxiv.org/abs/1804.09654
Autor:
Andreani, Paola, Retana-Montenegro, Edwin, Zhang, Zhi-Yu, Papadopoulos, Padelis, Yang, Chentao, Vegetti, Simona
Publikováno v:
A&A 615, A142 (2018)
Atomic Carbon can be an efficient tracer of the molecular gas mass, and when combined to the detection of high-J and low-J CO lines it yields also a sensitive probe of the power sources in the molecular gas of high redshift galaxies. The recently ins
Externí odkaz:
http://arxiv.org/abs/1802.07430
Autor:
Bisbas, Thomas G., van Dishoeck, Ewine F., Papadopoulos, Padelis P., Szücs, László, Bialy, Shmuel, Zhang, Zhi-Yu
We explore the effects of the expected higher cosmic ray (CR) ionization rates $\zeta_{\rm CR}$ on the abundances of carbon monoxide (CO), atomic carbon (C), and ionized carbon (C$^+$) in the H$_2$ clouds of star-forming galaxies. The study of Bisbas
Externí odkaz:
http://arxiv.org/abs/1703.08598