Zobrazeno 1 - 10
of 252 185
pro vyhledávání: '"Galàxies"'
Autor:
Khoperskov, Sergey, van de Ven, Glenn, Steinmetz, Matthias, Ratcliffe, Bridget, Minchev, Ivan, Krajnovic, Davor, Haywood, Misha, Di Matteo, Paola, Kacharov, Nikolay, Marques, Léa, Valentini, Marica, de Jong, Roelof S.
We introduce a novel orbit superposition method designed to reconstruct the stellar density structure, kinematics, and chemical abundance distribution of the entire Milky Way by leveraging 6D phase-space information from its resolved stellar populati
Externí odkaz:
http://arxiv.org/abs/2411.15062
Autor:
Zaritsky, Dennis, Chandra, Vedant, Conroy, Charlie, Bonaca, Ana, Cargile, Phillip A., Naidu, Rohan P.
The Magellanic Stream has long been known to contain multiple HI strands and corresponding stellar populations are beginning to be discovered. Combining an H3-selected sample with stars drawn from the Gaia catalog, we trace stars along a sub-dominant
Externí odkaz:
http://arxiv.org/abs/2411.15044
Autor:
Tudorache, Madalina N., Jarvis, M. J., Ponomareva, A. A., Heywood, I., Maddox, N., Frank, B. S., Baes, M., Dave, R., Jung, S. L., Maksymowicz-Maciata, M., Pan, H., Spekkens, K.
The interplay between atomic gas, the star-formation history of a galaxy and its environment are intrinsically linked, and we need to decouple these dependencies to understand their role in galaxy formation and evolution. In this paper, we analyse th
Externí odkaz:
http://arxiv.org/abs/2411.14940
Autor:
Rong, Yu, Wang, Peng
We investigate the alignment of non-red early-type galaxies (ETGs) with blue or green colors within large-scale filaments and compare this alignment pattern with that of red ETGs. Our analysis reveals a significant alignment of the major axes of red
Externí odkaz:
http://arxiv.org/abs/2411.14885
Fast radio bursts (FRBs) are high-energy, short-duration phenomena in radio astronomy. Identifying their host galaxies can provide insights into their mysterious origins. In this paper, we introduce a novel approach to identifying potential host gala
Externí odkaz:
http://arxiv.org/abs/2411.13973
Autor:
Lovell, Christopher C., Starkenburg, Tjitske, Ho, Matthew, Anglés-Alcázar, Daniel, Davé, Romeel, Gabrielpillai, Austen, Iyer, Kartheik, Matthews, Alice E., Roper, William J., Somerville, Rachel, Sommovigo, Laura, Villaescusa-Navarro, Francisco
We perform the first direct cosmological and astrophysical parameter inference from the combination of galaxy luminosity functions and colours using a simulation based inference approach. Using the Synthesizer code we simulate the dust attenuated ult
Externí odkaz:
http://arxiv.org/abs/2411.13960
Autor:
Wang, Lei, Shan, Huanyuan, Nie, Lin, Cheng, Cheng, Yuan, Fang-Ting, Cui, Qifan, Li, Guoliang, Xie, Yushan, Liu, Dezi, Liu, Yao, Fang, Min, Li, Nan, Jia, Peng, Li, Ran, Liu, Fengshan, Shu, Yiping, Jiang, Chang, Wei, Cheng-Liang, Qu, Han, Zheng, Wen-Wen, Zhu, Li-Yan, Kang, Xi
We present the application of the image coaddition algorithm, Up-sampling and PSF Deconvolution Coaddition (UPDC), for stacking multiple exposure images captured by the James Webb Space Telescope (JWST) Near-Infrared Camera (NIRCam). By addressing th
Externí odkaz:
http://arxiv.org/abs/2411.13891
Autor:
Maity, A. K., Dewangan, L. K., Bhadari, N. K., Fukui, Y., Ismail, A. Haj, Jadhav, O. R., Sharma, Saurabh, Sano, H.
Hub-filament systems (HFSs) are potential sites of massive star formation (MSF). To understand the role of filaments in MSF and the origin of HFSs, we conducted a multi-scale and multi-wavelength observational investigation of the molecular cloud G32
Externí odkaz:
http://arxiv.org/abs/2411.13870
Autor:
Li, Shan-shan, Li, Chun-qian, Li, Chang-hua, Fan, Dong-wei, Xu, Yun-fei, Mi, Lin-ying, Cui, Chen-zhou, Shi, Jian-rong
We utilize a hybrid approach that integrates the traditional cross-correlation function (CCF) and machine learning to detect spectroscopic multi-systems, specifically focusing on double-line spectroscopic binary (SB2). Based on the ninth data release
Externí odkaz:
http://arxiv.org/abs/2411.14714
The progenitors of Type II-P supernovae (SN) have been confirmed to be red supergiants. However, the upper mass limit of the directly probed progenitors is much lower than that predicted by current theories, and the accurate determination of the prog
Externí odkaz:
http://arxiv.org/abs/2411.14685