The ALMA Legacy Survey of Class 0/I Disks in Corona australis, Aquila, chaMaeleon, oPhiuchus north, Ophiuchus, Serpens (CAMPOS). I. Evolution of Protostellar Disk Radii

Autor: Cheng-Han Hsieh, Héctor G. Arce, María José Maureira, Jaime E. Pineda, Dominique Segura-Cox, Diego Mardones, Michael M. Dunham, Aiswarya Arun

Publikováno v: The Astrophysical Journal, Vol 973, Iss 2, p 138 (2024)

We surveyed nearly all the embedded protostars in seven nearby clouds (Corona Australis, Aquila, Chamaeleon I and II, Ophiuchus North, Ophiuchus, Serpens) with the Atacama Large Millimeter/submillimeter Array at 1.3 mm observations with a resolution

Externí odkaz: https://doaj.org/article/4d9c251c93cc439dbc7ba142ca5e84f6

Can Protostellar Outflows Set Stellar Masses?

Autor: Philip C. Myers, Michael M. Dunham, Ian W. Stephens

Publikováno v: The Astrophysical Journal, Vol 949, Iss 1, p 19 (2023)

The opening angles of some protostellar outflows appear too narrow to match the expected core–star mass efficiency (SFE) = 0.3–0.5, if the outflow cavity volume traces outflow mass, with a conical shape and a maximum opening angle near 90°. Howe

Externí odkaz: https://doaj.org/article/3a77e7754dfb4273bb1d3f6de7b025e1

Massive Compact Disks around FU Orionis-type Young Eruptive Stars Revealed by ALMA

Autor: Hauyu Baobab Liu, Th. Henning, L. Chen, Michihiro Takami, Eduard I. Vorobyov, Michiel R. Hogerheijde, O. Fehér, Ágnes Kóspál, Michael M. Dunham, F. Cruz-Sáenz de Miera, Joel D. Green, Péter Ábrahám, Jun Hashimoto, Tomoyuki Kudo, Timea Csengeri, Jacob Aaron White, Ruobing Dong

Publikováno v: Astrophysical Journal, Supplement Series, 256(2):30. IOP Publishing Ltd.
The Astrophysical Journal Supplement Series
Astrophysical Journal Supplement
Astrophysical Journal Supplement, American Astronomical Society, 2021, 256 (2), pp.30. ⟨10.3847/1538-4365/ac0f09⟩
The Astrophysical Journal Supplement Series, 256(2)

FU Orionis-type objects (FUors) are low-mass pre-main sequence stars undergoing a temporary, but significant increase of mass accretion rate from the circumstellar disk onto the protostar. It is not yet clear what triggers the accretion bursts and wh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eba599047b7165d9f4a0deedde4cbc48
https://dare.uva.nl/personal/pure/en/publications/massive-compact-disks-around-fu-orionistype-young-eruptive-stars-revealed-by-alma(129fe17a-a2ec-4f03-9a1c-1753dd7a5fd8).html

Evolution and Kinematics of Protostellar Envelopes in the Perseus Molecular Cloud

Autor: Daniel J. Heimsoth, Ian W. Stephens, Héctor G. Arce, Tyler L. Bourke, Philip C. Myers, Michael M. Dunham

Publikováno v: The Astrophysical Journal. 927:88

We present a comprehensive analysis on the evolution of envelopes surrounding protostellar systems in the Perseus molecular cloud using data from the MASSES survey. We focus our attention to the C$^{18}$O(2--1) spectral line, and we characterize the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::072eca3535418f2d98ff321724ed1c36
https://doi.org/10.3847/1538-4357/ac448e

The CARMA-NRO Orion Survey: Protostellar Outflows, Energetics, and Filamentary Alignment

Autor: John Bally, Suemeyye Suri, Álvaro Sánchez-Monge, Shuo Kong, Héctor G. Arce, Fumitaka Nakamura, Jesse R. Feddersen, Yoshito Shimajiri, Volker Ossenkopf-Okada, Michael M. Dunham

We identify 45 protostellar outflows in CO maps of the Orion A giant molecular cloud from the CARMA-NRO Orion survey. Our sample includes 11 newly detected outflows. We measure the mass and energetics of the outflows, including material at low-veloci

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e52856f076c194f29cde4bc44151eb97
http://arxiv.org/abs/2004.03504