Zobrazeno 1 - 10
of 772
pro vyhledávání: '"pre-main sequence stars"'
Publikováno v:
The Astrophysical Journal Letters, Vol 977, Iss 1, p L28 (2024)
We present spectroscopic and photometric observations of Bernhard-2, which was previously identified as a candidate system that hosts a misaligned circumbinary disk. Our spectroscopic measurements confirm that Bernhard-2 indeed contains an eccentric
Externí odkaz:
https://doaj.org/article/a0b4af5934284fb5a74d415187e303ef
Autor:
Kristina Monsch, Joshua Bennett Lovell, Ciprian T. Berghea, Gordian Edenhofer, Garrett K. Keating, Sean M. Andrews, Ammar Bayyari, Jeremy J. Drake, David J. Wilner
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 1, p L2 (2024)
We present resolved images of IRAS 23077+6707 (“Dracula’s Chivito”) in 1.3 mm/225 GHz thermal dust and CO gas emission with the Submillimeter Array (SMA) and optical (0.5–0.8 μ m) scattered light with the Panoramic Survey Telescope and Rapid
Externí odkaz:
https://doaj.org/article/e0db5de669374ec19daba69974aee62f
Autor:
Ciprian T. Berghea, Ammar Bayyari, Michael L. Sitko, Jeremy J. Drake, Ana Mosquera, Cecilia Garraffo, Thomas Petit, Ray W. Russell, Korash D. Assani
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 1, p L3 (2024)
We report the serendipitous discovery of a large edge-on protoplanetary disk in Pan-STARRS (PS1) images. PS1 has five broadband filters designated as g _P1 , r _P1 , i _P1 , z _P1 , and y _P1 with mean wavelengths 4866, 6215, 7545, 8679, and 9633 Å,
Externí odkaz:
https://doaj.org/article/e126cf9fb65e40b2aa9e68dd4d95a837
Autor:
Alekseev, I.1 ilya-alekseev@mail.ru
Publikováno v:
Astrophysics. Jun2014, Vol. 57 Issue 2, p254-271. 18p.
Autor:
Mutafov, Asen S.1 amutafov@astro.bas.bg, Semkov, Evgeni H.1, Ibryamov, Sunay I.2, Peneva, Stoyanka P.1
Publikováno v:
AIP Conference Proceedings. 2019, Vol. 2075 Issue 1, p090004-1-090004-8. 8p. 8 Graphs.
Autor:
Laurin M. Gray, Katherine L. Rhode, Catrina M. Hamilton-Drager, Tiffany Picard, Luisa M. Rebull
Publikováno v:
The Astrophysical Journal, Vol 977, Iss 2, p 270 (2024)
Investigating the angular momentum evolution of pre-main-sequence (PMS) stars provides important insight into the interactions between Sun-like stars and their protoplanetary disks, and the timescales that govern disk dissipation and planet formation
Externí odkaz:
https://doaj.org/article/c52ac19614fd4eefb00d51177ec07bf6
Autor:
Guido De Marchi, Giovanna Giardino, Katia Biazzo, Nino Panagia, Elena Sabbi, Tracy L. Beck, Massimo Robberto, Peter Zeidler, Olivia C. Jones, Margaret Meixner, Katja Fahrion, Nolan Habel, Conor Nally, Alec S. Hirschauer, David R. Soderblom, Omnarayani Nayak, Laura Lenkić, Ciaran Rogers, Bernhard Brandl, Charles D. Keyes
Publikováno v:
The Astrophysical Journal, Vol 977, Iss 2, p 214 (2024)
Previous Hubble Space Telescope observations of the star-forming cluster NGC 346 in the Small Magellanic Cloud (SMC) revealed a large population of pre-main-sequence (PMS) candidates, characterized by H α excess emission in their photometry. However
Externí odkaz:
https://doaj.org/article/3dcf234b96b5490fa54f83cb3181afc4
Autor:
Konstantin V. Getman, Eric D. Feigelson, Abygail R. Waggoner, L. Ilsedore Cleeves, Jan Forbrich, Joe P. Ninan, Oleg Kochukhov, Vladimir S. Airapetian, Sergio A. Dzib, Charles J. Law, Christian Rab
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 195 (2024)
The most powerful stellar flares driven by magnetic energy occur during the early pre-main-sequence (PMS) phase. The Orion Nebula represents the nearest region populated by young stars, showing the greatest number of flares accessible to a single poi
Externí odkaz:
https://doaj.org/article/5751438bfc2d4937b712d24f83ae90fa
Publikováno v:
The Astronomical Journal, Vol 168, Iss 6, p 251 (2024)
Gaia Data Release 3 (DR3) has provided the largest and most astrometrically precise catalog of nearby stars to date, allowing for a more complete membership census of nearby, young stellar moving groups. These loose associations of young (age
Externí odkaz:
https://doaj.org/article/7ffd860ffc4241c7bce3cbf83b1afdae