Zobrazeno 1 - 10
of 5 661
pro vyhledávání: '"STELLAR OBJECTS"'
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 2, p L40 (2024)
FU Ori objects are the most extreme eruptive young stars known. Their 4–5 mag photometric outbursts last for decades and are attributed to a factor of up to 10,000 increase in the stellar accretion rate. The nature of the accretion disk-to-star int
Externí odkaz:
https://doaj.org/article/1ccc446bc1934ace9de6feb8caa1ccdd
Autor:
Madyson G. Barber, Pa Chia Thao, Andrew W. Mann, Andrew Vanderburg, Mayuko Mori, John H. Livingston, Akihiko Fukui, Norio Narita, Adam L. Kraus, Benjamin M. Tofflemire, Elisabeth R. Newton, Joshua N. Winn, Jon M. Jenkins, Sara Seager, Karen A. Collins, Joseph D. Twicken
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 1, p L30 (2024)
The youngest (
Externí odkaz:
https://doaj.org/article/ee28b51a340b48469f3c8696b2efd05e
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:
Joshua Bennett Lovell, Garrett K. Keating, David J. Wilner, Sean M. Andrews, Meredith MacGregor, Ramisa Akther Rahman, Ramprasad Rao, Jonathan P. Williams
Publikováno v:
The Astrophysical Journal Letters, Vol 962, Iss 1, p L12 (2024)
We present evidence of variable 1.3 mm emission from the 1 to 3 Myr, spectral-type G2–G5 class III young stellar object (YSO), HD 283572. HD 283572 was observed on eight dates with the Submillimeter Array between 2021 December and 2023 May, with a
Externí odkaz:
https://doaj.org/article/6ee75a981d9f4f048f50e2768229df96
Autor:
J. A. López-Vázquez, Chin-Fei Lee, Hsien Shang, Sylvie Cabrit, Ruben Krasnopolsky, Claudio Codella, Chun-Fan Liu, Linda Podio, Somnath Dutta, A. Murphy, Jennifer Wiseman
Publikováno v:
The Astrophysical Journal, Vol 977, Iss 1, p 126 (2024)
We present the Atacama Large Millimeter/submillimeter Array Band 7 observations of the CO ( J = 3−2) line emission of the protostellar system HH 212 at ∼24 au spatial resolution and compare them to those of the SiO ( J = 8−7) and SO ( J = 8−7
Externí odkaz:
https://doaj.org/article/dab6d69dbc124364afe3e1b8395e7acb
Autor:
Omnarayani Nayak, Conor Nally, Alec S. Hirschauer, Olivia C. Jones, Jeroen Jaspers, Laura Lenkić, Margaret Meixner, Nolan Habel, Megan Reiter, Laurie Chu, Patrick J. Kavanagh, Massimo Robberto, B. A. Sargent
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 262 (2024)
We present 102 embedded young stellar object (YSO) candidates associated with the H72.97-69.39 super star cluster (SSC) in the Large Magellanic Cloud (LMC). With the use of the James Webb Space Telescope Mid-Infrared Instrument (MIRI) imaging mode, w
Externí odkaz:
https://doaj.org/article/5aba8f55571e41b18905352a1da87be2
Publikováno v:
The Astronomical Journal, Vol 168, Iss 5, p 225 (2024)
The Canis Major (CMa) region is known for its prominent arc-shaped morphology, visible at multiple wavelengths. This study integrates molecular gas data with high-precision astrometric parameters of young stellar objects (YSOs) from Gaia DR3 to provi
Externí odkaz:
https://doaj.org/article/1a6b9c904b8a481c9d0169c8d53a52f5
Publikováno v:
The Astronomical Journal, Vol 168, Iss 5, p 210 (2024)
Classifying and summarizing large data sets from different sky survey projects is essential for various subsequent scientific research. By combining data from 4XMM-DR13, Sloan Digital Sky Survey (SDSS) DR18, and CatWISE, we formed an XMM-WISE-SDSS sa
Externí odkaz:
https://doaj.org/article/8921be7a3c3b4298b5bd617a7f863b32
Autor:
Veronica Allen, Martin A. Cordiner, Gilles Adande, Steven B. Charnley, Yi-Jehng Kuan, Eva Wirström
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 2, p 187 (2024)
The earliest stages of low-mass star formation are unclear, with the first hydrostatic core (FHSC) as the transition stage between a prestellar and protostellar core. This work describes the local (∼4000 au) outflow activity associated with candida
Externí odkaz:
https://doaj.org/article/f83f3bb1a0e94ac480724199a978830a
Autor:
Adam E. Rubinstein, Neal J. Evans II, Himanshu Tyagi, Mayank Narang, Pooneh Nazari, Robert Gutermuth, Samuel Federman, P. Manoj, Joel D. Green, Dan M. Watson, S. Thomas Megeath, Will R. M. Rocha, Nashanty G. C. Brunken, Katerina Slavicinska, Ewine F. van Dishoeck, Henrik Beuther, Tyler L. Bourke, Alessio Caratti o Garatti, Lee Hartmann, Pamela Klaassen, Hendrik Linz, Leslie W. Looney, James Muzerolle, Thomas Stanke, John J. Tobin, Scott J. Wolk, Yao-Lun Yang
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 112 (2024)
We investigate the bright CO fundamental emission in the central regions of five protostars in their primary mass assembly phase using new observations from JWST’s Near-Infrared Spectrograph and Mid-Infrared Instrument. CO line emission images and
Externí odkaz:
https://doaj.org/article/88875499e1f440799610eb981466f866