A VLA View of the Flared, Asymmetric Disk around the Class 0 Protostar L1527 IRS

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Standard

A VLA View of the Flared, Asymmetric Disk around the Class 0 Protostar L1527 IRS. / Sheehan, Patrick D.; Tobin, John J.; Li, Zhi-Yun; Hoff, Merel L. R. van 't; Jorgensen, Jes K.; Kwon, Woojin; Looney, Leslie W.; Ohashi, Nagayoshi; Takakuwa, Shigehisa; Williams, Jonathan P.; Aso, Yusuke; Gavino, Sacha; de Gregorio-Monsalvo, Itziar; Han, Ilseung; Lee, Chang Won; Plunkett, Adele; Sharma, Rajeeb; Aikawa, Yuri; Lai, Shih-Ping; Lee, Jeong-Eun; Lin, Zhe-Yu Daniel; Saigo, Kazuya; Tomida, Kengo; Yen, Hsi-Wei.

I: Astrophysical Journal, Bind 934, Nr. 2, 95, 01.08.2022.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Sheehan, PD, Tobin, JJ, Li, Z-Y, Hoff, MLRV, Jorgensen, JK, Kwon, W, Looney, LW, Ohashi, N, Takakuwa, S, Williams, JP, Aso, Y, Gavino, S, de Gregorio-Monsalvo, I, Han, I, Lee, CW, Plunkett, A, Sharma, R, Aikawa, Y, Lai, S-P, Lee, J-E, Lin, Z-YD, Saigo, K, Tomida, K & Yen, H-W 2022, 'A VLA View of the Flared, Asymmetric Disk around the Class 0 Protostar L1527 IRS', Astrophysical Journal, bind 934, nr. 2, 95. https://doi.org/10.3847/1538-4357/ac7a3b

APA

Sheehan, P. D., Tobin, J. J., Li, Z-Y., Hoff, M. L. R. V. ., Jorgensen, J. K., Kwon, W., Looney, L. W., Ohashi, N., Takakuwa, S., Williams, J. P., Aso, Y., Gavino, S., de Gregorio-Monsalvo, I., Han, I., Lee, C. W., Plunkett, A., Sharma, R., Aikawa, Y., Lai, S-P., ... Yen, H-W. (2022). A VLA View of the Flared, Asymmetric Disk around the Class 0 Protostar L1527 IRS. Astrophysical Journal, 934(2), [95]. https://doi.org/10.3847/1538-4357/ac7a3b

Vancouver

Sheehan PD, Tobin JJ, Li Z-Y, Hoff MLRV, Jorgensen JK, Kwon W o.a. A VLA View of the Flared, Asymmetric Disk around the Class 0 Protostar L1527 IRS. Astrophysical Journal. 2022 aug. 1;934(2). 95. https://doi.org/10.3847/1538-4357/ac7a3b

Author

Sheehan, Patrick D. ; Tobin, John J. ; Li, Zhi-Yun ; Hoff, Merel L. R. van 't ; Jorgensen, Jes K. ; Kwon, Woojin ; Looney, Leslie W. ; Ohashi, Nagayoshi ; Takakuwa, Shigehisa ; Williams, Jonathan P. ; Aso, Yusuke ; Gavino, Sacha ; de Gregorio-Monsalvo, Itziar ; Han, Ilseung ; Lee, Chang Won ; Plunkett, Adele ; Sharma, Rajeeb ; Aikawa, Yuri ; Lai, Shih-Ping ; Lee, Jeong-Eun ; Lin, Zhe-Yu Daniel ; Saigo, Kazuya ; Tomida, Kengo ; Yen, Hsi-Wei. / A VLA View of the Flared, Asymmetric Disk around the Class 0 Protostar L1527 IRS. I: Astrophysical Journal. 2022 ; Bind 934, Nr. 2.

Bibtex

@article{29a6c1e102b94657ad565506d5f6510a,
title = "A VLA View of the Flared, Asymmetric Disk around the Class 0 Protostar L1527 IRS",
abstract = "We present high-resolution Karl G. Jansky Very Large Array (VLA) observations of the protostar L1527 IRS at 7 mm, 1.3 cm, and 2 cm wavelengths. We detect the edge-on dust disk at all three wavelengths and find that it is asymmetric, with the southern side of the disk brighter than the northern side. We confirm this asymmetry through analytic modeling and also find that the disk is flared at 7 mm. We test the data against models including gap features in the intensity profile, and though we cannot rule such models out, they do not provide a statistically significant improvement in the quality of fit to the data. From these fits, we can, however, place constraints on allowed properties of any gaps that could be present in the true, underlying intensity profile. The physical nature of the asymmetry is difficult to associate with physical features owing to the edge-on nature of the disk, but it could be related to spiral arms or asymmetries seen in other imaging of more face-on disks.",
keywords = "YOUNG STELLAR OBJECTS, STAR-FORMING REGIONS, INNER ENVELOPE, ALMA, EVOLUTION, CONTINUUM, GAS, SUBSTRUCTURES, MOLECULES, MASSES",
author = "Sheehan, {Patrick D.} and Tobin, {John J.} and Zhi-Yun Li and Hoff, {Merel L. R. van 't} and Jorgensen, {Jes K.} and Woojin Kwon and Looney, {Leslie W.} and Nagayoshi Ohashi and Shigehisa Takakuwa and Williams, {Jonathan P.} and Yusuke Aso and Sacha Gavino and {de Gregorio-Monsalvo}, Itziar and Ilseung Han and Lee, {Chang Won} and Adele Plunkett and Rajeeb Sharma and Yuri Aikawa and Shih-Ping Lai and Jeong-Eun Lee and Lin, {Zhe-Yu Daniel} and Kazuya Saigo and Kengo Tomida and Hsi-Wei Yen",
year = "2022",
month = aug,
day = "1",
doi = "10.3847/1538-4357/ac7a3b",
language = "English",
volume = "934",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing, Inc",
number = "2",

}

RIS

TY - JOUR

T1 - A VLA View of the Flared, Asymmetric Disk around the Class 0 Protostar L1527 IRS

AU - Sheehan, Patrick D.

AU - Tobin, John J.

AU - Li, Zhi-Yun

AU - Hoff, Merel L. R. van 't

AU - Jorgensen, Jes K.

AU - Kwon, Woojin

AU - Looney, Leslie W.

AU - Ohashi, Nagayoshi

AU - Takakuwa, Shigehisa

AU - Williams, Jonathan P.

AU - Aso, Yusuke

AU - Gavino, Sacha

AU - de Gregorio-Monsalvo, Itziar

AU - Han, Ilseung

AU - Lee, Chang Won

AU - Plunkett, Adele

AU - Sharma, Rajeeb

AU - Aikawa, Yuri

AU - Lai, Shih-Ping

AU - Lee, Jeong-Eun

AU - Lin, Zhe-Yu Daniel

AU - Saigo, Kazuya

AU - Tomida, Kengo

AU - Yen, Hsi-Wei

PY - 2022/8/1

Y1 - 2022/8/1

N2 - We present high-resolution Karl G. Jansky Very Large Array (VLA) observations of the protostar L1527 IRS at 7 mm, 1.3 cm, and 2 cm wavelengths. We detect the edge-on dust disk at all three wavelengths and find that it is asymmetric, with the southern side of the disk brighter than the northern side. We confirm this asymmetry through analytic modeling and also find that the disk is flared at 7 mm. We test the data against models including gap features in the intensity profile, and though we cannot rule such models out, they do not provide a statistically significant improvement in the quality of fit to the data. From these fits, we can, however, place constraints on allowed properties of any gaps that could be present in the true, underlying intensity profile. The physical nature of the asymmetry is difficult to associate with physical features owing to the edge-on nature of the disk, but it could be related to spiral arms or asymmetries seen in other imaging of more face-on disks.

AB - We present high-resolution Karl G. Jansky Very Large Array (VLA) observations of the protostar L1527 IRS at 7 mm, 1.3 cm, and 2 cm wavelengths. We detect the edge-on dust disk at all three wavelengths and find that it is asymmetric, with the southern side of the disk brighter than the northern side. We confirm this asymmetry through analytic modeling and also find that the disk is flared at 7 mm. We test the data against models including gap features in the intensity profile, and though we cannot rule such models out, they do not provide a statistically significant improvement in the quality of fit to the data. From these fits, we can, however, place constraints on allowed properties of any gaps that could be present in the true, underlying intensity profile. The physical nature of the asymmetry is difficult to associate with physical features owing to the edge-on nature of the disk, but it could be related to spiral arms or asymmetries seen in other imaging of more face-on disks.

KW - YOUNG STELLAR OBJECTS

KW - STAR-FORMING REGIONS

KW - INNER ENVELOPE

KW - ALMA

KW - EVOLUTION

KW - CONTINUUM

KW - GAS

KW - SUBSTRUCTURES

KW - MOLECULES

KW - MASSES

U2 - 10.3847/1538-4357/ac7a3b

DO - 10.3847/1538-4357/ac7a3b

M3 - Journal article

VL - 934

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 95

ER -

ID: 315528377