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A 1.3 mm SMA Survey of 29 Variable Young Stellar Objects

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A 1.3 mm SMA Survey of 29 Variable Young Stellar Objects. / Liu, Hauyu Baobab; Dunham, Michael M.; Pascucci, Ilaria; Bourke, Tyler L.; Hirano, Naomi; Longmore, Steven; Andrews, Sean; Carrasco-González, Carlos; Forbrich, Jan; Galván-Madrid, Roberto; Girart, Josep M.; Green, Joel D.; Juárez, Carmen; Kóspál, Ágnes; Manara, Carlo Felice; Palau, Aina; Takami, Michihiro; Testi, Leonardo; Vorobyov, Eduard I.

In: Astronomy & Astrophysics, Vol. 612, A54, 01.04.2018.

Research output: Contribution to journalArticlepeer-review

Harvard

Liu, HB, Dunham, MM, Pascucci, I, Bourke, TL, Hirano, N, Longmore, S, Andrews, S, Carrasco-González, C, Forbrich, J, Galván-Madrid, R, Girart, JM, Green, JD, Juárez, C, Kóspál, Á, Manara, CF, Palau, A, Takami, M, Testi, L & Vorobyov, EI 2018, 'A 1.3 mm SMA Survey of 29 Variable Young Stellar Objects', Astronomy & Astrophysics, vol. 612, A54. https://doi.org/10.1051/0004-6361/201731951

APA

Liu, H. B., Dunham, M. M., Pascucci, I., Bourke, T. L., Hirano, N., Longmore, S., Andrews, S., Carrasco-González, C., Forbrich, J., Galván-Madrid, R., Girart, J. M., Green, J. D., Juárez, C., Kóspál, Á., Manara, C. F., Palau, A., Takami, M., Testi, L., & Vorobyov, E. I. (2018). A 1.3 mm SMA Survey of 29 Variable Young Stellar Objects. Astronomy & Astrophysics, 612, [A54]. https://doi.org/10.1051/0004-6361/201731951

Vancouver

Liu HB, Dunham MM, Pascucci I, Bourke TL, Hirano N, Longmore S et al. A 1.3 mm SMA Survey of 29 Variable Young Stellar Objects. Astronomy & Astrophysics. 2018 Apr 1;612. A54. https://doi.org/10.1051/0004-6361/201731951

Author

Liu, Hauyu Baobab ; Dunham, Michael M. ; Pascucci, Ilaria ; Bourke, Tyler L. ; Hirano, Naomi ; Longmore, Steven ; Andrews, Sean ; Carrasco-González, Carlos ; Forbrich, Jan ; Galván-Madrid, Roberto ; Girart, Josep M. ; Green, Joel D. ; Juárez, Carmen ; Kóspál, Ágnes ; Manara, Carlo Felice ; Palau, Aina ; Takami, Michihiro ; Testi, Leonardo ; Vorobyov, Eduard I. / A 1.3 mm SMA Survey of 29 Variable Young Stellar Objects. In: Astronomy & Astrophysics. 2018 ; Vol. 612.

Bibtex

@article{e591b164af82412880e6176aaeab4c57,
title = "A 1.3 mm SMA Survey of 29 Variable Young Stellar Objects",
abstract = "Context. Young stellar objects (YSOs) may undergo periods of active accretion (outbursts), during which the protostellar accretion rate is temporarily enhanced by a few orders of magnitude. Whether or not these accretion outburst YSOs possess similar dust and gas reservoirs to each other, and whether or not their dust and gas reservoirs are similar as quiescent YSOs, are issues yet to be clarified.Aims. The aim of this work is to characterize the millimeter thermal dust emission properties of a statistically significant sample of long and short duration accretion outburst YSOs (i.e., FUors and EXors) and the spectroscopically identified candidates of accretion outbursting YSOs (i.e., FUor-like objects). Methods. We have carried out extensive Submillimeter Array (SMA) observations mostly at ~225 GHz (1.33 mm) and ~272 GHz (1.10 mm), from 2008 to 2017. We covered accretion outburst YSOs located at <1 kpc distances from the solar system. Results. We analyze all the existing SMA data of such objects, both published and unpublished, in a coherent way to present a millimeter interferometric database of 29 objects. We obtained 21 detections at >3σ significance. Detected sources except for the two cases of V883 Ori and NGC 2071 MM3 were observed with ~1″ angular resolution. Overall our observed targets show a systematically higher millimeter luminosity distribution than those of the M ∗ > 0.3 MClass II YSOs in the nearby (400 pc) low-mass star-forming molecular clouds (e.g., Taurus, Lupus, Upp Scorpio, and Chameleon I). In addition, at 1 mm our observed confirmed binaries or triple-system sources are systematically fainter than the rest of the sources even though their 1 mm fluxes are broadly distributed. We may have detected ∼30-60% millimeter flux variability from V2494 Cyg and V2495 Cyg, from the observations separated by approximately one year. ",
keywords = "Radio continuum: ISM, Stars: formation, Stars: variables: T Tauri, Herbig Ae/Be, Submillimeter: ISM",
author = "Liu, {Hauyu Baobab} and Dunham, {Michael M.} and Ilaria Pascucci and Bourke, {Tyler L.} and Naomi Hirano and Steven Longmore and Sean Andrews and Carlos Carrasco-Gonz{\'a}lez and Jan Forbrich and Roberto Galv{\'a}n-Madrid and Girart, {Josep M.} and Green, {Joel D.} and Carmen Ju{\'a}rez and {\'A}gnes K{\'o}sp{\'a}l and Manara, {Carlo Felice} and Aina Palau and Michihiro Takami and Leonardo Testi and Vorobyov, {Eduard I.}",
note = "{\textcopyright} 2018 ESO. Reproduced with permission from Astronomy & Astrophysics. ",
year = "2018",
month = apr,
day = "1",
doi = "10.1051/0004-6361/201731951",
language = "English",
volume = "612",
journal = "Astronomy & Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",

}

RIS

TY - JOUR

T1 - A 1.3 mm SMA Survey of 29 Variable Young Stellar Objects

AU - Liu, Hauyu Baobab

AU - Dunham, Michael M.

AU - Pascucci, Ilaria

AU - Bourke, Tyler L.

AU - Hirano, Naomi

AU - Longmore, Steven

AU - Andrews, Sean

AU - Carrasco-González, Carlos

AU - Forbrich, Jan

AU - Galván-Madrid, Roberto

AU - Girart, Josep M.

AU - Green, Joel D.

AU - Juárez, Carmen

AU - Kóspál, Ágnes

AU - Manara, Carlo Felice

AU - Palau, Aina

AU - Takami, Michihiro

AU - Testi, Leonardo

AU - Vorobyov, Eduard I.

N1 - © 2018 ESO. Reproduced with permission from Astronomy & Astrophysics.

PY - 2018/4/1

Y1 - 2018/4/1

N2 - Context. Young stellar objects (YSOs) may undergo periods of active accretion (outbursts), during which the protostellar accretion rate is temporarily enhanced by a few orders of magnitude. Whether or not these accretion outburst YSOs possess similar dust and gas reservoirs to each other, and whether or not their dust and gas reservoirs are similar as quiescent YSOs, are issues yet to be clarified.Aims. The aim of this work is to characterize the millimeter thermal dust emission properties of a statistically significant sample of long and short duration accretion outburst YSOs (i.e., FUors and EXors) and the spectroscopically identified candidates of accretion outbursting YSOs (i.e., FUor-like objects). Methods. We have carried out extensive Submillimeter Array (SMA) observations mostly at ~225 GHz (1.33 mm) and ~272 GHz (1.10 mm), from 2008 to 2017. We covered accretion outburst YSOs located at <1 kpc distances from the solar system. Results. We analyze all the existing SMA data of such objects, both published and unpublished, in a coherent way to present a millimeter interferometric database of 29 objects. We obtained 21 detections at >3σ significance. Detected sources except for the two cases of V883 Ori and NGC 2071 MM3 were observed with ~1″ angular resolution. Overall our observed targets show a systematically higher millimeter luminosity distribution than those of the M ∗ > 0.3 MClass II YSOs in the nearby (400 pc) low-mass star-forming molecular clouds (e.g., Taurus, Lupus, Upp Scorpio, and Chameleon I). In addition, at 1 mm our observed confirmed binaries or triple-system sources are systematically fainter than the rest of the sources even though their 1 mm fluxes are broadly distributed. We may have detected ∼30-60% millimeter flux variability from V2494 Cyg and V2495 Cyg, from the observations separated by approximately one year.

AB - Context. Young stellar objects (YSOs) may undergo periods of active accretion (outbursts), during which the protostellar accretion rate is temporarily enhanced by a few orders of magnitude. Whether or not these accretion outburst YSOs possess similar dust and gas reservoirs to each other, and whether or not their dust and gas reservoirs are similar as quiescent YSOs, are issues yet to be clarified.Aims. The aim of this work is to characterize the millimeter thermal dust emission properties of a statistically significant sample of long and short duration accretion outburst YSOs (i.e., FUors and EXors) and the spectroscopically identified candidates of accretion outbursting YSOs (i.e., FUor-like objects). Methods. We have carried out extensive Submillimeter Array (SMA) observations mostly at ~225 GHz (1.33 mm) and ~272 GHz (1.10 mm), from 2008 to 2017. We covered accretion outburst YSOs located at <1 kpc distances from the solar system. Results. We analyze all the existing SMA data of such objects, both published and unpublished, in a coherent way to present a millimeter interferometric database of 29 objects. We obtained 21 detections at >3σ significance. Detected sources except for the two cases of V883 Ori and NGC 2071 MM3 were observed with ~1″ angular resolution. Overall our observed targets show a systematically higher millimeter luminosity distribution than those of the M ∗ > 0.3 MClass II YSOs in the nearby (400 pc) low-mass star-forming molecular clouds (e.g., Taurus, Lupus, Upp Scorpio, and Chameleon I). In addition, at 1 mm our observed confirmed binaries or triple-system sources are systematically fainter than the rest of the sources even though their 1 mm fluxes are broadly distributed. We may have detected ∼30-60% millimeter flux variability from V2494 Cyg and V2495 Cyg, from the observations separated by approximately one year.

KW - Radio continuum: ISM

KW - Stars: formation

KW - Stars: variables: T Tauri, Herbig Ae/Be

KW - Submillimeter: ISM

UR - http://www.scopus.com/inward/record.url?scp=85046653990&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201731951

DO - 10.1051/0004-6361/201731951

M3 - Article

VL - 612

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

SN - 0004-6361

M1 - A54

ER -