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Gravitational torques imply molecular gas inflow towards the nucleus of M51

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Abstract
The transport of gas towards the centre of galaxies is critical for black hole feeding and, indirectly, it can control active galactic nucleus (AGN) feedback. We have quantified the molecular gas inflow in the central R < 1 kpc of M51 to be 1 M-circle dot/yr, using a new gravitational torque map and the molecular gas traced by the Plateau de Bure Interferometer Arcsecond Whirlpool Survey (PAWS). The nuclear stellar bar is responsible for this gas inflow. We also used torque profiles to estimate the location of dynamical resonances, and the results suggest a corotation for the bar CRbar similar to 20 '', and a corotation for the spiral CRsp similar to 100 ''. We demonstrate how important it is to correct 3.6 mu m images for dust emission when gravitational torques are to be computed, and we examine further sources of uncertainty. Our observational measurement of gas inflow can be compared with nuclear molecular outflow rates and provide useful constraints for numerical simulations.
Keywords
SUPERMASSIVE BLACK-HOLES, STELLAR MASS DISTRIBUTIONS, DWARF SEYFERT, NUCLEI, S(4)G IRAC 3.6, GALAXIES NUGA, SPITZER SURVEY, STAR-FORMATION, GALACTIC NUCLEI, SPIRAL SHOCKS, IMAGES. II., galaxies: individual: M 51, galaxies: ISM, galaxies: structure, galaxies: kinematics and dynamics, galaxies: nuclei, galaxies: Seyfert

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MLA
Querejeta, M., et al. “Gravitational Torques Imply Molecular Gas Inflow towards the Nucleus of M51.” ASTRONOMY & ASTROPHYSICS, vol. 588, 2016.
APA
Querejeta, M., van der Wel, S. M., Schinnerer, E., Garcia-Burillo, S., Dobbs, C., Colombo, D., … Thompson, T. (2016). Gravitational torques imply molecular gas inflow towards the nucleus of M51. ASTRONOMY & ASTROPHYSICS, 588.
Chicago author-date
Querejeta, M, Sharon Meidt van der Wel, E Schinnerer, S Garcia-Burillo, CL Dobbs, D Colombo, G Dumas, et al. 2016. “Gravitational Torques Imply Molecular Gas Inflow towards the Nucleus of M51.” ASTRONOMY & ASTROPHYSICS 588.
Chicago author-date (all authors)
Querejeta, M, Sharon Meidt van der Wel, E Schinnerer, S Garcia-Burillo, CL Dobbs, D Colombo, G Dumas, A Hughes, C Kramer, AK Leroy, J Pety, KF Schuster, and TA Thompson. 2016. “Gravitational Torques Imply Molecular Gas Inflow towards the Nucleus of M51.” ASTRONOMY & ASTROPHYSICS 588.
Vancouver
1.
Querejeta M, van der Wel SM, Schinnerer E, Garcia-Burillo S, Dobbs C, Colombo D, et al. Gravitational torques imply molecular gas inflow towards the nucleus of M51. ASTRONOMY & ASTROPHYSICS. 2016;588.
IEEE
[1]
M. Querejeta et al., “Gravitational torques imply molecular gas inflow towards the nucleus of M51,” ASTRONOMY & ASTROPHYSICS, vol. 588, 2016.
@article{8622259,
  abstract     = {The transport of gas towards the centre of galaxies is critical for black hole feeding and, indirectly, it can control active galactic nucleus (AGN) feedback. We have quantified the molecular gas inflow in the central R < 1 kpc of M51 to be 1 M-circle dot/yr, using a new gravitational torque map and the molecular gas traced by the Plateau de Bure Interferometer Arcsecond Whirlpool Survey (PAWS). The nuclear stellar bar is responsible for this gas inflow. We also used torque profiles to estimate the location of dynamical resonances, and the results suggest a corotation for the bar CRbar similar to 20 '', and a corotation for the spiral CRsp similar to 100 ''. We demonstrate how important it is to correct 3.6 mu m images for dust emission when gravitational torques are to be computed, and we examine further sources of uncertainty. Our observational measurement of gas inflow can be compared with nuclear molecular outflow rates and provide useful constraints for numerical simulations.},
  articleno    = {A33},
  author       = {Querejeta, M and van der Wel, Sharon Meidt and Schinnerer, E and Garcia-Burillo, S and Dobbs, CL and Colombo, D and Dumas, G and Hughes, A and Kramer, C and Leroy, AK and Pety, J and Schuster, KF and Thompson, TA},
  issn         = {1432-0746},
  journal      = {ASTRONOMY & ASTROPHYSICS},
  keywords     = {SUPERMASSIVE BLACK-HOLES,STELLAR MASS DISTRIBUTIONS,DWARF SEYFERT,NUCLEI,S(4)G IRAC 3.6,GALAXIES NUGA,SPITZER SURVEY,STAR-FORMATION,GALACTIC NUCLEI,SPIRAL SHOCKS,IMAGES. II.,galaxies: individual: M 51,galaxies: ISM,galaxies: structure,galaxies: kinematics and dynamics,galaxies: nuclei,galaxies: Seyfert},
  language     = {eng},
  pages        = {19},
  title        = {Gravitational torques imply molecular gas inflow towards the nucleus of M51},
  url          = {http://dx.doi.org/10.1051/0004-6361/201527536},
  volume       = {588},
  year         = {2016},
}

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