Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Shang-fei Liu"'
Publikováno v:
The Astrophysical Journal, Vol 977, Iss 1, p 80 (2024)
Tidal disruption events (TDE) occur when a star ventures too close to a massive black hole. In a partial TDE (pTDE), the star only grazes the tidal radius, causing the outer envelope of the star to be stripped away while the stellar core survives. Pr
Externí odkaz:
https://doaj.org/article/b59427a5eccb4b0fa018e7b2ecc9e497
Autor:
Emma Nabbie, Chelsea X. Huang, Jennifer A. Burt, David J. Armstrong, Eric E. Mamajek, Vardan Adibekyan, Sérgio G. Sousa, Eric D. Lopez, Daniel Thorngren, Jorge Fernández Fernández, Gongjie Li, James S. Jenkins, Jose I. Vines, João Gomes da Silva, Robert A. Wittenmyer, Daniel Bayliss, César Briceño, Karen A. Collins, Xavier Dumusque, Keith Horne, Marcelo Aron F. Keniger, Nicholas Law, Jorge Lillo-Box, Shang-Fei Liu, Andrew W. Mann, Louise D. Nielsen, Ares Osborn, Howard M. Relles, José J. Rodrigues, Juan Serrano Bell, Gregor Srdoc, Chris Stockdale, Paul A. Strøm, Cristilyn N. Watkins, Peter J. Wheatley, Duncan J. Wright, George Zhou, Carl Ziegler, George Ricker, Sara Seager, Roland Vanderspek, Joshua N. Winn, Jon M. Jenkins, Michael Fausnaugh, Michelle Kunimoto, Hugh P. Osborn, Samuel N. Quinn, Bill Wohler
Publikováno v:
The Astronomical Journal, Vol 168, Iss 3, p 132 (2024)
The recent discoveries of Neptune-sized ultra-short-period planets (USPs) challenge existing planet formation theories. It is unclear whether these residents of the Hot Neptune Desert have similar origins to smaller, rocky USPs, or if this discrete p
Externí odkaz:
https://doaj.org/article/a9d48ba70414406eb0f96b9084efcfde
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 25 (2024)
Recent observations have confirmed circumplanetary disks (CPDs) embedded in parental protoplanetary disks (PPDs). On the other hand, planetary-mass companions and planetary-mass objects (PMOs) are likely to harbor their own accretion disks. Unlike PP
Externí odkaz:
https://doaj.org/article/6d32ed9fae39436f8e96cd173938e85e
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 38 (2024)
A planet’s mass loss is important for the its formation and evolution. The radius valley (RV) is believed to be triggered by evaporation-induced mass loss. As an alternative mechanism for RV, the mass loss of post-impact planets is thoroughly inves
Externí odkaz:
https://doaj.org/article/06c080e4645e40309768b1e8cdd72517
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 110 (2024)
Current imaging observations of protoplanetary disks using the Atacama Large Millimeter/submillimeter Array (ALMA) primarily focus on the submillimeter wavelength, leaving a gap in effective observational approaches for centimeter-sized dust, which i
Externí odkaz:
https://doaj.org/article/a8a83bae50284338ab8a8f2611a88be8
Publikováno v:
The Astrophysical Journal, Vol 947, Iss 1, p 32 (2023)
During the inspiralling of a white dwarf (WD) into an intermediate-mass black hole (∼10 ^2−5 M _⊙ ), both gravitational waves (GWs) and electromagnetic (EM) radiation are emitted. Once the eccentric orbit’s pericenter radius approaches the ti
Externí odkaz:
https://doaj.org/article/f05ca4db37174b998c576d1752bc829e
During the inspiralling of a white dwarf (WD) into an intermediate-mass black hole (~ 10^{2-5} M_sun), both gravitational waves (GWs) and electromagnetic (EM) radiation are emitted. Once the eccentric orbit's pericenter radius approaches the tidal ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0756bd7547c6d67d03f2895ca35bf82
We scrutinize the light sail scenario of the first interstellar object (ISO) 1I/2017 U1 (`Oumuamua) by making comparisons between physical models and observational constraints. These analyses can be generalized for future surveys of `Oumuamua-like ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::565d55be7ebd779f3c736ef672aa1536
Autor:
Bo Ma, Shang-fei Liu, Jian-Wen Ou, Ming Yang, Chen Jiang, Cong Yu, Juan-juan Luo, Guan-fu Liu
Apsidal motion is a gradual shift in the position of periastron. The impact of dynamic tides on apsidal motion has long been debated, because the contribution could not be quantified due to the lack of high quality observations. KIC 4544587 with tida
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a67feab498efb0acf22fc3c7f5f0a3ce
http://arxiv.org/abs/2109.00192
http://arxiv.org/abs/2109.00192
Publikováno v:
The Astrophysical Journal
A significant fraction of white dwarfs (WDs) exhibit signs of ongoing accretion of refractory elements at rates $\sim10^3$--$10^7$ kg s$^{-1}$, among which, 37 WDs were detected to harbor dusty debris disks. Such a concurrence requires not only ferti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8c7c327476c006318fc30ba26891f6f