Zobrazeno 1 - 10
of 290 167
pro vyhledávání: '"Stellar Astrophysics"'
Publikováno v:
The Astrophysical Journal, 2024
Propagation of interplanetary (IP) shocks, particularly those driven by coronal mass ejections (CMEs), is still an outstanding question in heliophysics and space weather forecasting. Here we address effects of the ambient solar wind on the propagatio
Externí odkaz:
http://arxiv.org/abs/2411.00747
Despite the energetic significance of Lyman-alpha (Ly{\alpha}; 1216\AA) emission from solar flares, regular observations of flare related Ly{\alpha} have been relatively scarce until recently. Advances in instrumental capabilities and a shift in focu
Externí odkaz:
http://arxiv.org/abs/2411.00736
Autor:
Husidic, Edin, Wijsen, Nicolas, Linan, Luis, Brchnelova, Michaela, Vainio, Rami, Poedts, Stefaan
Solar energetic particles (SEPs) associated with solar flares and coronal mass ejections (CMEs) are key agents of space weather phenomena, posing severe threats to spacecraft and astronauts. Recent observations by Parker Solar Probe (PSP) indicate th
Externí odkaz:
http://arxiv.org/abs/2411.00738
In June 2022, the Gaia mission released a catalog of astrometric orbital solutions for 168,065 binary systems, by far the largest such catalog to date. Unlike previous binary stars catalogs, which were heterogeneous collections of orbits from differe
Externí odkaz:
http://arxiv.org/abs/2411.00654
The extinction curve of interstellar dust in the dense molecular cloud cores is crucial for understanding dust properties, particularly size distribution and composition. We investigate the infrared extinction law in four nearby isolated molecular cl
Externí odkaz:
http://arxiv.org/abs/2411.00619
Autor:
Cretignier, M., Hara, N. C., Pietrow, A. G. M., Zhao, Y., Yu, H., Dumusque, X., Sozzetti, A., Lovis, C., Aigrain, S.
In our former paper I, we showed on the Sun that different active regions possess unique intensity profiles on the Ca II H & K lines. We now extend the analysis by showing how those properties can be used on real stellar observations, delivering more
Externí odkaz:
http://arxiv.org/abs/2411.00557
We present a freeze-out approach to the formation of heavy elements in expanding nuclear matter. Applying concepts used in the description of heavy-ion collisions or ternary fission, we determine the abundances of heavy elements taking into account i
Externí odkaz:
http://arxiv.org/abs/2411.00535
Autor:
Jiang, Long, Xu, Kun, Zha, Shuai, Guo, Yun-Lang, Yuan, Jian-Ping, Qian, Xiang-Li, Chen, Wen-Cong, Wang, Na
The double neutron star PSR J1846-0513 is discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in Commensal Radio Astronomy FAST Survey. The pulsar is revealed to be harbored in an eccentric orbit with $e=0.208$ and orbital
Externí odkaz:
http://arxiv.org/abs/2411.00513
The formation mechanism of interstellar formamide (NH$_2$CHO), a key prebiotic precursor, is currently a matter of hot debate within the astrochemistry community, with both gas-phase and grain-surface chemical pathways having been proposed as its dom
Externí odkaz:
http://arxiv.org/abs/2411.00495
Autor:
Nelson, C. J., Hayes, L. A., Müller, D., Musset, S., Freij, N., Auchère, F., Cuadrado, R. Aznar, Barczynski, K., Buchlin, E., Harra, L., Long, D. M., Parenti, S., Peter, H., Schühle, U., Smith, P., Teriaca, L., Verbeeck, C., Zhukov, A. N., Berghmans, D.
The identification of large numbers of localised transient EUV brightenings, with small spatial scales, in the quiet-Sun corona has been one of the key early results from Solar Orbiter. However, much is still unknown about these events. Here, we aim
Externí odkaz:
http://arxiv.org/abs/2411.00467