Models of Rotating Infall for the B335 Protostar

Research output: Contribution to journal › Journal article › Research › peer-review

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Models of Rotating Infall for the B335 Protostar. / Evans II, Neal J.; Yang, Yao-Lun; Green, Joel D.; Zhao, Bo; Di Francesco, James; Lee, Jeong-Eun; Jorgensen, Jes K.; Choi, Minho; Myers, Philip. C.; Mardones, Diego.

In: Astrophysical Journal, Vol. 943, No. 2, 90, 01.02.2023.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Evans II, NJ, Yang, Y-L, Green, JD, Zhao, B, Di Francesco, J, Lee, J-E, Jorgensen, JK, Choi, M, Myers, PC & Mardones, D 2023, 'Models of Rotating Infall for the B335 Protostar', Astrophysical Journal, vol. 943, no. 2, 90. https://doi.org/10.3847/1538-4357/acaa38

APA

Evans II, N. J., Yang, Y-L., Green, J. D., Zhao, B., Di Francesco, J., Lee, J-E., Jorgensen, J. K., Choi, M., Myers, P. C., & Mardones, D. (2023). Models of Rotating Infall for the B335 Protostar. Astrophysical Journal, 943(2), [90]. https://doi.org/10.3847/1538-4357/acaa38

Vancouver

Evans II NJ, Yang Y-L, Green JD, Zhao B, Di Francesco J, Lee J-E et al. Models of Rotating Infall for the B335 Protostar. Astrophysical Journal. 2023 Feb 1;943(2). 90. https://doi.org/10.3847/1538-4357/acaa38

Author

Evans II, Neal J. ; Yang, Yao-Lun ; Green, Joel D. ; Zhao, Bo ; Di Francesco, James ; Lee, Jeong-Eun ; Jorgensen, Jes K. ; Choi, Minho ; Myers, Philip. C. ; Mardones, Diego. / Models of Rotating Infall for the B335 Protostar. In: Astrophysical Journal. 2023 ; Vol. 943, No. 2.

Bibtex

@article{1fc8159e24e543af899a56fcc76d17cc,

title = "Models of Rotating Infall for the B335 Protostar",

abstract = "Models of the protostellar source, B335, are developed using axisymmetric three-dimensional models to resolve conflicts found in one-dimensional models. The models are constrained by a large number of observations, including ALMA, Herschel, and Spitzer data. Observations of the protostellar source B335 with ALMA show redshifted absorption against a central continuum source indicative of infall in the HCO+ and HCN J = 4 -> 3 transitions. The data are combined with a new estimate of the distance to provide strong constraints to three-dimensional radiative transfer models including a rotating, infalling envelope, outflow cavities, and a very small disk. The models favor ages since the initiation of collapse between 3 x 10(4) and 4 x 10(4) yr for both the continuum and the lines, resolving a conflict found in one-dimensional models. The models underpredict the continuum emission seen by ALMA, suggesting an additional component such as a pseudo-disk. The best-fitting model is used to convert variations in the 4.5 mu m flux in recent years into a model for a variation of a factor of 5-7 in luminosity over the last 8 yr.",

keywords = "YOUNG STELLAR OBJECTS, SPECTRAL ENERGY-DISTRIBUTIONS, MASS STAR-FORMATION, ALMA OBSERVATIONS, EVOLUTIONARY SIGNATURES, RADIO-CONTINUUM, AU SCALE, COLLAPSE, ASTROPY, PROJECT",

author = "{Evans II}, {Neal J.} and Yao-Lun Yang and Green, {Joel D.} and Bo Zhao and {Di Francesco}, James and Jeong-Eun Lee and Jorgensen, {Jes K.} and Minho Choi and Myers, {Philip. C.} and Diego Mardones",

year = "2023",

month = feb,

day = "1",

doi = "10.3847/1538-4357/acaa38",

language = "English",

volume = "943",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "Institute of Physics Publishing, Inc",

number = "2",

}

RIS

TY - JOUR

T1 - Models of Rotating Infall for the B335 Protostar

AU - Evans II, Neal J.

AU - Yang, Yao-Lun

AU - Green, Joel D.

AU - Zhao, Bo

AU - Di Francesco, James

AU - Lee, Jeong-Eun

AU - Jorgensen, Jes K.

AU - Choi, Minho

AU - Myers, Philip. C.

AU - Mardones, Diego

PY - 2023/2/1

Y1 - 2023/2/1

N2 - Models of the protostellar source, B335, are developed using axisymmetric three-dimensional models to resolve conflicts found in one-dimensional models. The models are constrained by a large number of observations, including ALMA, Herschel, and Spitzer data. Observations of the protostellar source B335 with ALMA show redshifted absorption against a central continuum source indicative of infall in the HCO+ and HCN J = 4 -> 3 transitions. The data are combined with a new estimate of the distance to provide strong constraints to three-dimensional radiative transfer models including a rotating, infalling envelope, outflow cavities, and a very small disk. The models favor ages since the initiation of collapse between 3 x 10(4) and 4 x 10(4) yr for both the continuum and the lines, resolving a conflict found in one-dimensional models. The models underpredict the continuum emission seen by ALMA, suggesting an additional component such as a pseudo-disk. The best-fitting model is used to convert variations in the 4.5 mu m flux in recent years into a model for a variation of a factor of 5-7 in luminosity over the last 8 yr.

AB - Models of the protostellar source, B335, are developed using axisymmetric three-dimensional models to resolve conflicts found in one-dimensional models. The models are constrained by a large number of observations, including ALMA, Herschel, and Spitzer data. Observations of the protostellar source B335 with ALMA show redshifted absorption against a central continuum source indicative of infall in the HCO+ and HCN J = 4 -> 3 transitions. The data are combined with a new estimate of the distance to provide strong constraints to three-dimensional radiative transfer models including a rotating, infalling envelope, outflow cavities, and a very small disk. The models favor ages since the initiation of collapse between 3 x 10(4) and 4 x 10(4) yr for both the continuum and the lines, resolving a conflict found in one-dimensional models. The models underpredict the continuum emission seen by ALMA, suggesting an additional component such as a pseudo-disk. The best-fitting model is used to convert variations in the 4.5 mu m flux in recent years into a model for a variation of a factor of 5-7 in luminosity over the last 8 yr.

KW - YOUNG STELLAR OBJECTS

KW - SPECTRAL ENERGY-DISTRIBUTIONS

KW - MASS STAR-FORMATION

KW - ALMA OBSERVATIONS

KW - EVOLUTIONARY SIGNATURES

KW - RADIO-CONTINUUM

KW - AU SCALE

KW - COLLAPSE

KW - ASTROPY

KW - PROJECT

U2 - 10.3847/1538-4357/acaa38

DO - 10.3847/1538-4357/acaa38

M3 - Journal article

VL - 943

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 90

ER -

ID: 337792954