ALMA reveals optically thin, highly excited CO gas in the jet-driven winds of the galaxy IC 5063

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F16%3A00540088" target="_blank" >RIV/67985815:_____/16:00540088 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1051/0004-6361/201629689" target="_blank" >https://doi.org/10.1051/0004-6361/201629689</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201629689" target="_blank" >10.1051/0004-6361/201629689</a>

Result language

angličtina

Original language name

ALMA reveals optically thin, highly excited CO gas in the jet-driven winds of the galaxy IC 5063

Original language description

Using CO (4-3) and (2-1) Atacama Large Millimeter Array (ALMA) data, we prove that the molecular gas in the jet-driven winds of the galaxy IC 5063 is more highly excited than the rest of the molecular gas in the disk of the same galaxy. On average, the CO(4-3)/CO(2-1) flux ratio is 1 for the disk and 5 for the jet accelerated or impacted gas. Spatially-resolved maps reveal that in regions associated with winds, the CO(4-3)/CO(2-1) flux ratio significantly exceeds the upper limit of 4 for optically thick gas. It frequently takes values between 5 and 11, and it occasionally further approaches the upper limit of 16 for optically thin gas. Excitation temperatures of 30 100K are common for the molecules in these regions. If all of the outflowing molecular gas is optically thin, at 30-50 K, then its mass is 2 x 10(6) M-circle dot. This lower mass limit is an order of magnitude below the mass derived from the CO(2-1) flux in the case of optically thick gas. Molecular winds can thus be less massive, but more easily detectable at high z than they were previously thought to be.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

—

Continuities

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Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astronomy & Astrophysics

ISSN

1432-0746

e-ISSN

—

Volume of the periodical

595

Issue of the periodical within the volume

November

Country of publishing house

FR - FRANCE

Number of pages

4

Pages from-to

L7

UT code for WoS article

000388573500142

EID of the result in the Scopus database

2-s2.0-84994651587