Early results from a diagnostic 1.3 cm survey of massive young protostars

Crystal L. Brogan; Todd R. Hunter; Claudia J. Cyganowski; Remy Indebetouw; Rachel Friesen; Claire Chandler

doi:10.1017/S1743921312007594

Early results from a diagnostic 1.3 cm survey of massive young protostars

Crystal L. Brogan, Todd R. Hunter, Claudia J. Cyganowski, Remy Indebetouw, Rachel Friesen, Claire Chandler

School of Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We have used the recently-upgraded Karl G. Jansky Very Large Array (JVLA) to conduct a K-band (~24 GHz) study of 22 massive young stellar objects in 1.3 cm continuum and a comprehensive set of diagnostic lines.This survey is unique in that it samples a wide range of massive star formation signposts simultaneously for the first time. In this proceeding we present preliminary results for the 11 sources in the 2-4 kpc distance bin. We detect compact NH3 cores in all of the fields, with many showing emission up through the (6,6) transition.Maser emission in the 25 GHz CH3OH ladder is present in 7 of11 sources. We also detect non-thermal emission in the NH3(3,3) transition in 7 of 11 sources.

Original language	English
Title of host publication	Cosmic Masers -- from OH to H0
Subtitle of host publication	Proceedings of the International Astronomical Union
Pages	497-501
Volume	287
DOIs	https://doi.org/10.1017/S1743921312007594
Publication status	Published - 1 Jul 2012

Keywords

masers
stars: formation
ISM: jets and outflows
ISM: molecules
radio lines: ISM
radio continuum: ISM
infrared: ISM
submillimeter

Access to Document

10.1017/S1743921312007594

http://adsabs.harvard.edu/abs/2012IAUS..287..497B

Cite this

@inproceedings{69da4c1ab02a4224830708c2477b69f8,

title = "Early results from a diagnostic 1.3 cm survey of massive young protostars",

abstract = "We have used the recently-upgraded Karl G. Jansky Very Large Array (JVLA) to conduct a K-band (~24 GHz) study of 22 massive young stellar objects in 1.3 cm continuum and a comprehensive set of diagnostic lines.This survey is unique in that it samples a wide range of massive star formation signposts simultaneously for the first time. In this proceeding we present preliminary results for the 11 sources in the 2-4 kpc distance bin. We detect compact NH3 cores in all of the fields, with many showing emission up through the (6,6) transition.Maser emission in the 25 GHz CH3OH ladder is present in 7 of11 sources. We also detect non-thermal emission in the NH3(3,3) transition in 7 of 11 sources.",

keywords = "masers, stars: formation, ISM: jets and outflows, ISM: molecules, radio lines: ISM, radio continuum: ISM, infrared: ISM, submillimeter",

author = "Brogan, {Crystal L.} and Hunter, {Todd R.} and Cyganowski, {Claudia J.} and Remy Indebetouw and Rachel Friesen and Claire Chandler",

year = "2012",

month = jul,

day = "1",

doi = "10.1017/S1743921312007594",

language = "English",

volume = "287",

pages = "497--501",

booktitle = "Cosmic Masers -- from OH to H0",

}

TY - GEN

T1 - Early results from a diagnostic 1.3 cm survey of massive young protostars

AU - Brogan, Crystal L.

AU - Hunter, Todd R.

AU - Cyganowski, Claudia J.

AU - Indebetouw, Remy

AU - Friesen, Rachel

AU - Chandler, Claire

PY - 2012/7/1

Y1 - 2012/7/1

N2 - We have used the recently-upgraded Karl G. Jansky Very Large Array (JVLA) to conduct a K-band (~24 GHz) study of 22 massive young stellar objects in 1.3 cm continuum and a comprehensive set of diagnostic lines.This survey is unique in that it samples a wide range of massive star formation signposts simultaneously for the first time. In this proceeding we present preliminary results for the 11 sources in the 2-4 kpc distance bin. We detect compact NH3 cores in all of the fields, with many showing emission up through the (6,6) transition.Maser emission in the 25 GHz CH3OH ladder is present in 7 of11 sources. We also detect non-thermal emission in the NH3(3,3) transition in 7 of 11 sources.

AB - We have used the recently-upgraded Karl G. Jansky Very Large Array (JVLA) to conduct a K-band (~24 GHz) study of 22 massive young stellar objects in 1.3 cm continuum and a comprehensive set of diagnostic lines.This survey is unique in that it samples a wide range of massive star formation signposts simultaneously for the first time. In this proceeding we present preliminary results for the 11 sources in the 2-4 kpc distance bin. We detect compact NH3 cores in all of the fields, with many showing emission up through the (6,6) transition.Maser emission in the 25 GHz CH3OH ladder is present in 7 of11 sources. We also detect non-thermal emission in the NH3(3,3) transition in 7 of 11 sources.

KW - masers

KW - stars: formation

KW - ISM: jets and outflows

KW - ISM: molecules

KW - radio lines: ISM

KW - radio continuum: ISM

KW - infrared: ISM

KW - submillimeter

U2 - 10.1017/S1743921312007594

DO - 10.1017/S1743921312007594

M3 - Conference contribution

VL - 287

SP - 497

EP - 501

BT - Cosmic Masers -- from OH to H0

ER -

Early results from a diagnostic 1.3 cm survey of massive young protostars

Abstract

Keywords

Access to Document

Fingerprint

Cite this