Zobrazeno 1 - 10
of 33 505
pro vyhledávání: '"Parsec"'
Autor:
Wang, Fan, Fang, Min, Fu, Xiaoting, Chen, Yang, Li, Lu, Pang, Xiaoying, Li, Zhongmu, Tang, Jing, Cui, Wenyuan, Tian, Haijun, Liu, Chao
Recent literature reports a color deviation between observed Gaia color-magnitude diagrams (CMDs) and theoretical model isochrone predictions, particularly in the very low-mass regime. To assess its impact on cluster age determination via isochrone f
Externí odkaz:
http://arxiv.org/abs/2411.12987
Autor:
Gil, D. Fernández, Hodgson, J. A., L'Huillier, B., Asorey, J., Saulder, C., Finner, K., Jee, M. J., Parkinson, D., Combes, F.
The relationship between galaxies and their supermassive black holes (SMBHs) is an area of active research. One way to investigate this is to compare parsec-scale jets formed by SMBHs with the projected shape of their kiloparsec-scale host galaxies.
Externí odkaz:
http://arxiv.org/abs/2411.09099
We investigated the influence of the Eddington ratio on sub-parsec-scale outflows in active galactic nuclei (AGNs) with supermassive black holes (SMBHs) masses of $10^7$ M$_{\odot}$ using two-dimensional radiation hydrodynamics simulations. When the
Externí odkaz:
http://arxiv.org/abs/2411.07736
Autor:
Calura, F., Pascale, R., Agertz, O., Andersson, E., Lacchin, E., Lupi, A., Meneghetti, M., Nipoti, C., Ragagnin, A., Rosdahl, J., Vanzella, E., Vesperini, E., Zanella, A.
Star clusters stand at the crossroads between galaxies and single stars. Resolving the formation of star clusters in cosmological simulations represents an ambitious and challenging goal, since modelling their internal properties requires very high r
Externí odkaz:
http://arxiv.org/abs/2411.02502
Autor:
Shara, Michael M., Lanzetta, Kenneth M., Garland, James T., Valls-Gabaud, David, Gromoll, Stefan, Misiura, Mikita, Walter, Frederick M., Webb, John K., Martin, Barrett
Classical nova eruptions result from thermonuclear-powered runaways in, and ejection of, the hydrogen-rich envelopes of white dwarf stars accreted from their close binary companions. Novae brighten to up to 1,000,000 solar luminosities, and recur tho
Externí odkaz:
http://arxiv.org/abs/2410.12103
We analyze the variability of the parsec-scale jet directions in active galactic nuclei (AGNs). Our analysis involves 317 AGNs at frequencies ranging from 2 to 43 GHz, and is made possible by developing an automatic inner jet direction measurement pr
Externí odkaz:
http://arxiv.org/abs/2409.12309
We present a multi-frequency polarimetric study for the quasar 1604+159. The source was observed at the $L$ band with the American Very Long Baseline Array (VLBA) and the $L$, $X$, and $U$ bands with the Very Large Array (VLA). These observations pro
Externí odkaz:
http://arxiv.org/abs/2408.06647
Autor:
Claeyssens, Adélaïde, Adamo, Angela, Messa, Matteo, Dessauges-Zavadsky, Miroslava, Richard, Johan, Kramarenko, Ivan, Matthee, Jorryt, Naidu, Rohan P.
We present a sample of 1956 individual stellar clumps at redshift 0.7
Externí odkaz:
http://arxiv.org/abs/2410.10974
We present the pc-scale radio spectra of a representative sample of 13 Palomar-Green (PG) radio-quiet quasars (RQQ), based on our new Very Long Baseline Array (VLBA) observations at 8.4 and 23.6 GHz and our earlier VLBA studies at 1.5 and 5.0 GHz. Th
Externí odkaz:
http://arxiv.org/abs/2410.07889
Autor:
Park, Jongho, Zhao, Guang-Yao, Nakamura, Masanori, Mizuno, Yosuke, Pu, Hung-Yi, Asada, Keiichi, Takahashi, Kazuya, Toma, Kenji, Kino, Motoki, Cho, Ilje, Hada, Kazuhiro, Edwards, Phil G., Ro, Hyunwook, Kam, Minchul, Yi, Kunwoo, Lee, Yunjeong, Koyama, Shoko, Byun, Do-Young, Phillips, Chris, Reynolds, Cormac, Hodgson, Jeffrey A., Lee, Sang-Sung
We report the first observation of the nearby giant radio galaxy NGC 315 using a global VLBI array consisting of 22 radio antennas located across five continents, including high-sensitivity stations, at 22 GHz. Utilizing the extensive $(u,v)$-coverag
Externí odkaz:
http://arxiv.org/abs/2408.09069