Zobrazeno 1 - 10
of 75
pro vyhledávání: '"621"'
Autor:
Li, Zhongmu, Mao, Caiyan
Open clusters (OCs) are common in the Milky Way, but most of them remain undiscovered. There are numerous techniques (e.g., machine-learning algorithms) available for the exploration of OCs. However, each method has its limitations and therefore, dif
Externí odkaz:
http://arxiv.org/abs/2401.10717
Autor:
Tian, Pengfu, Zhang, Ping, Wang, Wei, Wang, Pei, Sun, Xiaohui, Liu, Jifeng, Zhang, Bing, Dai, Zigao, Yuan, Feng, Zhang, Shuangnan, Liu, Qingzhong, Jiang, Peng, Wu, Xuefeng, Zheng, Zheng, Chen, Jiashi, Li, Di, Zhu, Zonghong, Pan, Zhichen, Gan, Hengqian, Chen, Xiao, Sai, Na
Publikováno v:
2023, Nature, 621, 271-275
Powerful relativistic jets are one of the ubiquitous features of accreting black holes in all scales. GRS 1915+105 is a well-known fast-spinning black-hole X-ray binary with a relativistic jet, termed as a ``microquasar'', as indicated by its superlu
Externí odkaz:
http://arxiv.org/abs/2307.14015
Autor:
Tokovinin, Andrei
Publikováno v:
The Astronomical Journal, 2023, V. 165
There should be about 10,000 stellar hierarchical systems within 100 pc with primary stars more massive than 0.5 Msun, and a similar amount of less massive hierarchies. A list of 8000 candidate multiples is derived from wide binaries found in the Gai
Externí odkaz:
http://arxiv.org/abs/2303.17620
Autor:
Uzundag, Murat, Silvotti, Roberto, Baran, Andrzej S., Vuckovic, Maja, Nemeth, Péter, Sahoo, Sumanta K., Reed, Mike
TIC033834484 and TIC309658435 are long-period pulsating subdwarf B star, which were observed extensively (675 and 621 days, respectively) by the Transiting Exoplanet Survey Satellite (TESS). The high-precision photometric light curve reveals the pres
Externí odkaz:
http://arxiv.org/abs/2212.02950
The Wideband Sensitivity Upgrade (WSU) is the top priority initiative for the ALMA2030 Development Roadmap. The WSU will initially double, and eventually quadruple, ALMA's system bandwidth and will deliver improved sensitivity by upgrading the receiv
Externí odkaz:
http://arxiv.org/abs/2211.00195
In antiquity, all of the enduring celestial bodies that were seen to move relative to the background sky of stars were considered planets. During the Copernican revolution, this definition was altered to objects orbiting around the Sun, removing the
Externí odkaz:
http://arxiv.org/abs/2203.09520
Autor:
Cruzalèbes, P., Petrov, R. G., Robbe-Dubois, S., Varga, J., Burtscher, L., Allouche, F., Berio, P., Hofmann, K. -H., Hron, J., Jaffe, W., Lagarde, S., Lopez, B., Matter, A., Meilland, A., Meisenheimer, K., Millour, F., Schertl, D.
We present the Mid-infrared stellar Diameters and Fluxes compilation Catalogue (MDFC) dedicated to long-baseline interferometry at mid-infrared wavelengths (3-13 mum). It gathers data for half a million stars, i.e. nearly all the stars of the Hipparc
Externí odkaz:
http://arxiv.org/abs/1910.00542
Autor:
Suchomska, K., Graczyk, D., Pietrzyński, G., Gieren, W., Ostrowski, J., Smolec, R., Tkachenko, A., Górski, M., Karczmarek, P., Wielgórski, P., Zgirski, B., Thompson, I. B., Villanova, S., Pilecki, B., Taormina, M., Kołaczkowski, Z., Narloch, W., Soszyński, I.
Publikováno v:
2019, A&A, 621, A93
Aim: Our aim is to obtain high-accuracy measurements of the physical and orbital parameters of two evolved eclipsing binary systems, and to use these measurements to study their evolutionary status. We also aim to derive distances to the systems by u
Externí odkaz:
http://arxiv.org/abs/1904.04879
Autor:
Zakharenko, Olena, Lewen, Frank, Ilyushin, Vadim V., Drozdovskaya, Maria N., Jørgensen, Jes K., Schlemmer, Stephan, Müller, Holger S. P.
Publikováno v:
A&A 621, A114 (2019)
Methyl mercaptan (also known as methanethiol), CH3SH, has been found in the warm and dense parts of high -- as well as low -- mass star-forming regions. The aim of the present study is to obtain accurate spectroscopic parameters of the S-deuterated m
Externí odkaz:
http://arxiv.org/abs/1812.02454
Autor:
Müller, H. S. P., Maeda, A., Thorwirth, S., Lewen, F., Schlemmer, S., Medvedev, I. R., Winnewisser, M., De Lucia, F. C., Herbst, E.
Publikováno v:
A&A 621, A143 (2019)
Thioformaldehyde is an abundant molecule in various regions of the interstellar medium. However, available laboratory data limit the accuracies of calculated transition frequencies in the submillimeter region, in particular for minor isotopic species
Externí odkaz:
http://arxiv.org/abs/1812.01554