Zobrazeno 1 - 10
of 302
pro vyhledávání: '"Stellar jets"'
Autor:
Noam Soker
Publikováno v:
Galaxies, Vol 12, Iss 3, p 29 (2024)
I demonstrate the usage of planetary nebulae (PNe) to infer that a pair of jets shaped the ejecta of the core-collapse supernova (CCSN) SN 1987A. The main structure of the SN 1987A inner ejecta, the ‘keyhole’, comprises two low-intensity zones. T
Externí odkaz:
https://doaj.org/article/02704973f68f4101aa90a7d4df2261ed
Autor:
Antonio Martínez-Henares, Qizhou Zhang, Izaskun Jiménez-Serra, Jesús Martín-Pintado, Nuria Huélamo, Sirina Prasad, James Moran, Alejandro Báez-Rubio
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 1, p L7 (2024)
Jets and disk winds arise from materials with excess angular momentum ejected from the accretion disks in forming stars. How these structures are launched and how they impact the gas within the innermost regions of these objects remains poorly unders
Externí odkaz:
https://doaj.org/article/f9ccef8099b74e7e82d11689d054ab72
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 1, p L6 (2024)
We analyzed the Atacama Large Millimeter/submillimeter Array (ALMA) band 6 data for the outbursting massive protostar M17 MIR. The ALMA CO J = 2–1 data reveal a collimated and bipolar north–south outflow from M17 MIR. The blueshifted outflow exhi
Externí odkaz:
https://doaj.org/article/2f4c24c67e2c4b91be5eaa1f9aa55785
Autor:
Mayank Narang, P. Manoj, Himanshu Tyagi, Dan M. Watson, S. Thomas Megeath, Samuel Federman, Adam E. Rubinstein, Robert Gutermuth, Alessio Caratti o Garatti, Henrik Beuther, Tyler L. Bourke, Ewine F. Van Dishoeck, Neal J. Evans II, Guillem Anglada, Mayra Osorio, Thomas Stanke, James Muzerolle, Leslie W. Looney, Yao-Lun Yang, Pamela Klaassen, Nicole Karnath, Prabhani Atnagulov, Nashanty Brunken, William J. Fischer, Elise Furlan, Joel Green, Nolan Habel, Lee Hartmann, Hendrik Linz, Pooneh Nazari, Riwaj Pokhrel, Rohan Rahatgaonkar, Will R. M. Rocha, Patrick Sheehan, Katerina Slavicinska, Amelia M. Stutz, John J. Tobin, Lukasz Tychoniec, Scott Wolk
Publikováno v:
The Astrophysical Journal Letters, Vol 962, Iss 1, p L16 (2024)
Investigating Protostellar Accretion (IPA) is a JWST Cycle 1 GO program that uses NIRSpec integral field units and MIRI Medium Resolution Spectrograph to obtain 2.9–28 μ m spectral cubes of young, deeply embedded protostars with luminosities of 0.
Externí odkaz:
https://doaj.org/article/dfdbf40e59a34686b7118e4faaf594a3
Autor:
Michael A. Tucker, Jason Hinkle, Charlotte R. Angus, Katie Auchettl, Willem B. Hoogendam, Benjamin Shappee, Christopher S. Kochanek, Chris Ashall, Thomas de Boer, Kenneth C. Chambers, Dhvanil D. Desai, Aaron Do, Michael D. Fulton, Hua Gao, Joanna Herman, Mark Huber, Chris Lidman, Chien-Cheng Lin, Thomas B. Lowe, Eugene A. Magnier, Bailey Martin, Paloma Mínguez, Matt Nicholl, Miika Pursiainen, S. J. Smartt, Ken W. Smith, Shubham Srivastav, Brad E. Tucker, Richard J. Wainscoat
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 178 (2024)
We present extensive observations of the Type II supernova (SN II) SN 2023ufx, which is likely the most metal-poor SN II observed to date. It exploded in the outskirts of a low-metallicity ( Z _host ∼ 0.1 Z _⊙ ) dwarf ( M _g = −13.39 ± 0.16 ma
Externí odkaz:
https://doaj.org/article/b9e3d67385cf4d05a32601c37a487780
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 281 (2024)
Analyzing images of the Cygnus Loop, a core-collapse supernova (CCSN) remnant, in different emission bands, we identify a point-symmetrical morphology composed of three symmetry axes that we attribute to shaping by three pairs of jets. The main jet a
Externí odkaz:
https://doaj.org/article/17a2afff4cc94920933667bc74ed683a
Autor:
Emma T. Whelan, Miriam Keppler, Neal J. Turner, Ilaria Pascucci, Erika Hamden, Keri Hoadley, Min Fang
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 293 (2024)
2MASS J16075796-2040087 is an ∼5 Myr young star in Upper Sco with evidence for accretion bursts on a timescale of about 15 days and, uncommonly for its age, outflows traced by multicomponent forbidden emission lines (FELs). The accretion bursts may
Externí odkaz:
https://doaj.org/article/63c3d5171c4a4ef0af07010f845d1330
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:
Sacha Gavino, Jes K. Jørgensen, Rajeeb Sharma, Yao-Lun Yang, Zhi-Yun Li, John J. Tobin, Nagayoshi Ohashi, Shigehisa Takakuwa, Adele L. Plunkett, Woojin Kwon, Itziar de Gregorio-Monsalvo, Zhe-Yu Daniel Lin, Alejandro Santamaría-Miranda, Yusuke Aso, Jinshi Sai, Yuri Aikawa, Kengo Tomida, Patrick M. Koch, Jeong-Eun Lee, Chang Won Lee, Shih-Ping Lai, Leslie W. Looney, Suchitra Narayanan, Nguyen Thi Phuong, Travis J. Thieme, Merel L. R. van ’t Hoff, Jonathan P. Williams, Hsi-Wei Yen
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 21 (2024)
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of the binary Class 0 protostellar system BHR 71 IRS1 and IRS2 as part of the Early Planet Formation in Embedded Disks (eDisk) ALMA Large Program. We describe the ^12 CO ( J
Externí odkaz:
https://doaj.org/article/d18d63624d6f4a6697c95ee18b7d140e
Autor:
Joel D. Green, Klaus M. Pontoppidan, Megan Reiter, Dan M. Watson, Sachindev S. Shenoy, P. Manoj, Mayank Narang
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 5 (2024)
We present deep 1.4–4.8 μ m JWST-NIRCam imaging of the Serpens Main star-forming region and identify 20 candidate protostellar outflows, most with bipolar structure and identified driving sources. The outflow position angles (PAs) are strongly cor
Externí odkaz:
https://doaj.org/article/7b695e9e7c4945e7b2879c2e4177c0d0