ALMA observation of the disruption of molecular gas in M87

J 2018

ALMA observation of the disruption of molecular gas in M87

SIMIONESCU, A.; G. TREMBLAY; Norbert WERNER; R. E. A. CANNING; S. W. ALLEN et al.

Základní údaje

Originální název

ALMA observation of the disruption of molecular gas in M87

Autoři

SIMIONESCU, A.; G. TREMBLAY; Norbert WERNER; R. E. A. CANNING; S. W. ALLEN a J. B. R. OONK

Vydání

Monthly Notices of the Royal Astronomical Society, MALDEN, WILEY, 2018, 0035-8711

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL, URL

Impakt faktor

Impact factor: 5.231

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/18:00102566

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

galaxies: active; galaxies: clusters: intracluster medium; galaxies: individual: M87; radio lines: galaxies

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 10. 11. 2022 12:25, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

We present the results from Atacama Large Millimeter Array (ALMA) observations centred 40 arcsec (3 kpc in projection) south-east of the nucleus of M87. We report the detection of extended CO (2-1) line emission with a total flux of (5.5 +/- 0.6) x 10(-18) erg s(-1) cm(-2) and corresponding molecular gas mass M-H2 (4.7 +/- 0.4) x 10(5) M-circle dot, assuming a Galactic CO to H-2 conversion factor. ALMA data indicate a line-of-sight velocity of -129 +/- 3 km s(-1), in good agreement with measurements based on the [C-II] and H alpha+[N-II] lines, and a velocity dispersion of sigma = 27 +/- 3 km s(-1). The CO (2-1) emission originates only outside the radio lobe of the active galactic nucleus (AGN) seen in the 6 cm Very Large Array image, while the filament prolongs further inwards at other wavelengths. The molecular gas in M87 appears to be destroyed or excited by AGN activity, either by direct interaction with the radio plasma, or by the shock driven by the lobe into the X-ray emitting atmosphere. This is an important piece of the puzzle in understanding the impact of the central AGN on the amount of the coldest gas from which star formation can proceed.

Citovat

SIMIONESCU, A.; G. TREMBLAY; Norbert WERNER; R. E. A. CANNING; S. W. ALLEN a J. B. R. OONK. ALMA observation of the disruption of molecular gas in M87. Monthly Notices of the Royal Astronomical Society. MALDEN: WILEY, 2018, roč. 475, č. 3, s. 3004-3009. ISSN 0035-8711. Dostupné z: https://doi.org/10.1093/mnras/sty047.

@article{1413963,
   author = {Simionescu, A. and Tremblay, G. and Werner, Norbert and Canning, R. E. A. and Allen, S. W. and Oonk, J. B. R.},
   article_location = {MALDEN},
   article_number = {3},
   doi = {https://doi.org/10.1093/mnras/sty047},
   keywords = {galaxies: active; galaxies: clusters: intracluster medium; galaxies: individual: M87; radio lines: galaxies},
   language = {eng},
   issn = {0035-8711},
   journal = {Monthly Notices of the Royal Astronomical Society},
   title = {ALMA observation of the disruption of molecular gas in M87},
   url = {https://arxiv.org/pdf/1801.01264.pdf},
   volume = {475},
   year = {2018}
}

TY  - JOUR
ID  - 1413963
AU  - Simionescu, A. - Tremblay, G. - Werner, Norbert - Canning, R. E. A. - Allen, S. W. - Oonk, J. B. R.
PY  - 2018
TI  - ALMA observation of the disruption of molecular gas in M87
JF  - Monthly Notices of the Royal Astronomical Society
VL  - 475
IS  - 3
SP  - 3004-3009
EP  - 3004-3009
PB  - WILEY
SN  - 00358711
KW  - galaxies: active
KW  - galaxies: clusters: intracluster medium
KW  - galaxies: individual: M87
KW  - radio lines: galaxies
UR  - https://arxiv.org/pdf/1801.01264.pdf
N2  - We present the results from Atacama Large Millimeter Array (ALMA) observations centred 40 arcsec (3 kpc in projection) south-east of the nucleus of M87. We report the detection of extended CO (2-1) line emission with a total flux of (5.5 +/- 0.6) x 10(-18) erg s(-1) cm(-2) and corresponding molecular gas mass M-H2 (4.7 +/- 0.4) x 10(5) M-circle dot, assuming a Galactic CO to H-2 conversion factor. ALMA data indicate a line-of-sight velocity of -129 +/- 3 km s(-1), in good agreement with measurements based on the [C-II] and H alpha+[N-II] lines, and a velocity dispersion of sigma = 27 +/- 3 km s(-1). The CO (2-1) emission originates only outside the radio lobe of the active galactic nucleus (AGN) seen in the 6 cm Very Large Array image, while the filament prolongs further inwards at other wavelengths. The molecular gas in M87 appears to be destroyed or excited by AGN activity, either by direct interaction with the radio plasma, or by the shock driven by the lobe into the X-ray emitting atmosphere. This is an important piece of the puzzle in understanding the impact of the central AGN on the amount of the coldest gas from which star formation can proceed.
ER  -

SIMIONESCU, A.; G. TREMBLAY; Norbert WERNER; R. E. A. CANNING; S. W. ALLEN a J. B. R. OONK. ALMA observation of the disruption of molecular gas in M87. \textit{Monthly Notices of the Royal Astronomical Society}. MALDEN: WILEY, 2018, roč.~475, č.~3, s.~3004-3009. ISSN~0035-8711. Dostupné z: https://doi.org/10.1093/mnras/sty047.

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