The JCMT Nearby Galaxies Legacy Survey - VIII: CO data and the L -L  correlation in the SINGS sample

C.D. Wilson; B.E. Warren; F.P. Israel; S. Serjeant; D. Attewell; G. J. Bendo; H. M. Butner; P. Chanial; D. L. Clements; J. Golding; V. Heesen; J. Irwin; J. Leech; H.E. Matthews; S. Muhle; A.M.J. Mortier; G. Petitpas; J.R. Sánchez-Gallego; E. Sinukoff; K. Shorten; B.K. Tan; R.P.J. Tilanus; A. Usero; M. Vaccari; T. Wiegert; M. Zhu; D.M. Alexander; P. Alexander; M. Azimlu; P. Barmby; R. Brar; C. Bridge; E. Brinks; S. Brooks; Kristen Coppin; S. Côté; P. Côté; S. Courteau; J. Davies; S. Eales; M. Fich; M. Hudson; D.H. Hughes; R.J. Ivison; J.H. Knapen; M. Page; T.J. Parkin; D. Rigopoulou; E. Rosolowsky; E.R. Seaquist; K. Spekkens; N. Tanvir; J.M. van der Hulst; P. van der Werf; C. Vlahakis; T.M. Webb; B. Weferling; G.J. White

doi:10.1111/j.1365-2966.2012.21453.x

The JCMT Nearby Galaxies Legacy Survey - VIII: CO data and the L -L correlation in the SINGS sample

C.D. Wilson, B.E. Warren, F.P. Israel, S. Serjeant, D. Attewell, G. J. Bendo, H. M. Butner, P. Chanial, D. L. Clements, J. Golding, V. Heesen, J. Irwin, J. Leech, H.E. Matthews, S. Muhle, A.M.J. Mortier, G. Petitpas, J.R. Sánchez-Gallego, E. Sinukoff, K. ShortenB.K. Tan, R.P.J. Tilanus, A. Usero, M. Vaccari, T. Wiegert, M. Zhu, D.M. Alexander, P. Alexander, M. Azimlu, P. Barmby, R. Brar, C. Bridge, E. Brinks, S. Brooks, Kristen Coppin, S. Côté, P. Côté, S. Courteau, J. Davies, S. Eales, M. Fich, M. Hudson, D.H. Hughes, R.J. Ivison, J.H. Knapen, M. Page, T.J. Parkin, D. Rigopoulou, E. Rosolowsky, E.R. Seaquist, K. Spekkens, N. Tanvir, J.M. van der Hulst, P. van der Werf, C. Vlahakis, T.M. Webb, B. Weferling, G.J. White

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Abstract

The James Clerk Maxwell Telescope Nearby Galaxies Legacy Survey (NGLS) comprises an Hi-selected sample of 155 galaxies spanning all morphological types with distances less than 25Mpc. We describe the scientific goals of the survey, the sample selection and the observing strategy. We also present an atlas and analysis of the CO J=3 - 2 maps for the 47 galaxies in the NGLS which are also part of the Spitzer Infrared Nearby Galaxies Survey. We find a wide range of molecular gas mass fractions in the galaxies in this sample and explore the correlation of the far-infrared luminosity, which traces star formation, with the CO luminosity, which traces the molecular gas mass. By comparing the NGLS data with merging galaxies at low and high redshift, which have also been observed in the CO J=3 - 2 line, we show that the correlation of far-infrared and CO luminosity shows a significant trend with luminosity. This trend is consistent with a molecular gas depletion time which is more than an order of magnitude faster in the merger galaxies than in nearby normal galaxies. We also find a strong correlation of the L /L ratio with the atomic-to-molecular gas mass ratio. This correlation suggests that some of the far-infrared emission originates from dust associated with atomic gas and that its contribution is particularly important in galaxies where most of the gas is in the atomic phase.

Original language	English
Pages (from-to)	3050-3080
Number of pages	31
Journal	Monthly Notices of the Royal Astronomical Society (MNRAS)
Volume	424
Issue number	4
DOIs	https://doi.org/10.1111/j.1365-2966.2012.21453.x
Publication status	Published - 21 Aug 2012

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Wilson, C. D., Warren, B. E., Israel, F. P., Serjeant, S., Attewell, D., Bendo, G. J., Butner, H. M., Chanial, P., Clements, D. L., Golding, J., Heesen, V., Irwin, J., Leech, J., Matthews, H. E., Muhle, S., Mortier, A. M. J., Petitpas, G., Sánchez-Gallego, J. R., Sinukoff, E., ... White, G. J. (2012). The JCMT Nearby Galaxies Legacy Survey - VIII: CO data and the L -L correlation in the SINGS sample. Monthly Notices of the Royal Astronomical Society (MNRAS), 424(4), 3050-3080. https://doi.org/10.1111/j.1365-2966.2012.21453.x

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title = "The JCMT Nearby Galaxies Legacy Survey - VIII: CO data and the L -L correlation in the SINGS sample",

abstract = "The James Clerk Maxwell Telescope Nearby Galaxies Legacy Survey (NGLS) comprises an Hi-selected sample of 155 galaxies spanning all morphological types with distances less than 25Mpc. We describe the scientific goals of the survey, the sample selection and the observing strategy. We also present an atlas and analysis of the CO J=3 - 2 maps for the 47 galaxies in the NGLS which are also part of the Spitzer Infrared Nearby Galaxies Survey. We find a wide range of molecular gas mass fractions in the galaxies in this sample and explore the correlation of the far-infrared luminosity, which traces star formation, with the CO luminosity, which traces the molecular gas mass. By comparing the NGLS data with merging galaxies at low and high redshift, which have also been observed in the CO J=3 - 2 line, we show that the correlation of far-infrared and CO luminosity shows a significant trend with luminosity. This trend is consistent with a molecular gas depletion time which is more than an order of magnitude faster in the merger galaxies than in nearby normal galaxies. We also find a strong correlation of the L /L ratio with the atomic-to-molecular gas mass ratio. This correlation suggests that some of the far-infrared emission originates from dust associated with atomic gas and that its contribution is particularly important in galaxies where most of the gas is in the atomic phase.",

author = "C.D. Wilson and B.E. Warren and F.P. Israel and S. Serjeant and D. Attewell and Bendo, \{G. J.\} and Butner, \{H. M.\} and P. Chanial and Clements, \{D. L.\} and J. Golding and V. Heesen and J. Irwin and J. Leech and H.E. Matthews and S. Muhle and A.M.J. Mortier and G. Petitpas and J.R. S{\'a}nchez-Gallego and E. Sinukoff and K. Shorten and B.K. Tan and R.P.J. Tilanus and A. Usero and M. Vaccari and T. Wiegert and M. Zhu and D.M. Alexander and P. Alexander and M. Azimlu and P. Barmby and R. Brar and C. Bridge and E. Brinks and S. Brooks and Kristen Coppin and S. C{\^o}t{\'e} and P. C{\^o}t{\'e} and S. Courteau and J. Davies and S. Eales and M. Fich and M. Hudson and D.H. Hughes and R.J. Ivison and J.H. Knapen and M. Page and T.J. Parkin and D. Rigopoulou and E. Rosolowsky and E.R. Seaquist and K. Spekkens and N. Tanvir and \{van der Hulst\}, J.M. and \{van der Werf\}, P. and C. Vlahakis and T.M. Webb and B. Weferling and G.J. White",

year = "2012",

month = aug,

day = "21",

doi = "10.1111/j.1365-2966.2012.21453.x",

language = "English",

volume = "424",

pages = "3050--3080",

journal = "Monthly Notices of the Royal Astronomical Society (MNRAS)",

issn = "0035-8711",

publisher = "Oxford University Press (OUP)",

number = "4",

}

Wilson, CD, Warren, BE, Israel, FP, Serjeant, S, Attewell, D, Bendo, GJ, Butner, HM, Chanial, P, Clements, DL, Golding, J, Heesen, V, Irwin, J, Leech, J, Matthews, HE, Muhle, S, Mortier, AMJ, Petitpas, G, Sánchez-Gallego, JR, Sinukoff, E, Shorten, K, Tan, BK, Tilanus, RPJ, Usero, A, Vaccari, M, Wiegert, T, Zhu, M, Alexander, DM, Alexander, P, Azimlu, M, Barmby, P, Brar, R, Bridge, C, Brinks, E, Brooks, S, Coppin, K, Côté, S, Côté, P, Courteau, S, Davies, J, Eales, S, Fich, M, Hudson, M, Hughes, DH, Ivison, RJ, Knapen, JH, Page, M, Parkin, TJ, Rigopoulou, D, Rosolowsky, E, Seaquist, ER, Spekkens, K, Tanvir, N, van der Hulst, JM, van der Werf, P, Vlahakis, C, Webb, TM, Weferling, B & White, GJ 2012, 'The JCMT Nearby Galaxies Legacy Survey - VIII: CO data and the L -L correlation in the SINGS sample', Monthly Notices of the Royal Astronomical Society (MNRAS), vol. 424, no. 4, pp. 3050-3080. https://doi.org/10.1111/j.1365-2966.2012.21453.x

TY - JOUR

T1 - The JCMT Nearby Galaxies Legacy Survey - VIII

T2 - CO data and the L -L correlation in the SINGS sample

AU - Wilson, C.D.

AU - Warren, B.E.

AU - Israel, F.P.

AU - Serjeant, S.

AU - Attewell, D.

AU - Bendo, G. J.

AU - Butner, H. M.

AU - Chanial, P.

AU - Clements, D. L.

AU - Golding, J.

AU - Heesen, V.

AU - Irwin, J.

AU - Leech, J.

AU - Matthews, H.E.

AU - Muhle, S.

AU - Mortier, A.M.J.

AU - Petitpas, G.

AU - Sánchez-Gallego, J.R.

AU - Sinukoff, E.

AU - Shorten, K.

AU - Tan, B.K.

AU - Tilanus, R.P.J.

AU - Usero, A.

AU - Vaccari, M.

AU - Wiegert, T.

AU - Zhu, M.

AU - Alexander, D.M.

AU - Alexander, P.

AU - Azimlu, M.

AU - Barmby, P.

AU - Brar, R.

AU - Bridge, C.

AU - Brinks, E.

AU - Brooks, S.

AU - Coppin, Kristen

AU - Côté, S.

AU - Côté, P.

AU - Courteau, S.

AU - Davies, J.

AU - Eales, S.

AU - Fich, M.

AU - Hudson, M.

AU - Hughes, D.H.

AU - Ivison, R.J.

AU - Knapen, J.H.

AU - Page, M.

AU - Parkin, T.J.

AU - Rigopoulou, D.

AU - Rosolowsky, E.

AU - Seaquist, E.R.

AU - Spekkens, K.

AU - Tanvir, N.

AU - van der Hulst, J.M.

AU - van der Werf, P.

AU - Vlahakis, C.

AU - Webb, T.M.

AU - Weferling, B.

AU - White, G.J.

PY - 2012/8/21

Y1 - 2012/8/21

N2 - The James Clerk Maxwell Telescope Nearby Galaxies Legacy Survey (NGLS) comprises an Hi-selected sample of 155 galaxies spanning all morphological types with distances less than 25Mpc. We describe the scientific goals of the survey, the sample selection and the observing strategy. We also present an atlas and analysis of the CO J=3 - 2 maps for the 47 galaxies in the NGLS which are also part of the Spitzer Infrared Nearby Galaxies Survey. We find a wide range of molecular gas mass fractions in the galaxies in this sample and explore the correlation of the far-infrared luminosity, which traces star formation, with the CO luminosity, which traces the molecular gas mass. By comparing the NGLS data with merging galaxies at low and high redshift, which have also been observed in the CO J=3 - 2 line, we show that the correlation of far-infrared and CO luminosity shows a significant trend with luminosity. This trend is consistent with a molecular gas depletion time which is more than an order of magnitude faster in the merger galaxies than in nearby normal galaxies. We also find a strong correlation of the L /L ratio with the atomic-to-molecular gas mass ratio. This correlation suggests that some of the far-infrared emission originates from dust associated with atomic gas and that its contribution is particularly important in galaxies where most of the gas is in the atomic phase.

AB - The James Clerk Maxwell Telescope Nearby Galaxies Legacy Survey (NGLS) comprises an Hi-selected sample of 155 galaxies spanning all morphological types with distances less than 25Mpc. We describe the scientific goals of the survey, the sample selection and the observing strategy. We also present an atlas and analysis of the CO J=3 - 2 maps for the 47 galaxies in the NGLS which are also part of the Spitzer Infrared Nearby Galaxies Survey. We find a wide range of molecular gas mass fractions in the galaxies in this sample and explore the correlation of the far-infrared luminosity, which traces star formation, with the CO luminosity, which traces the molecular gas mass. By comparing the NGLS data with merging galaxies at low and high redshift, which have also been observed in the CO J=3 - 2 line, we show that the correlation of far-infrared and CO luminosity shows a significant trend with luminosity. This trend is consistent with a molecular gas depletion time which is more than an order of magnitude faster in the merger galaxies than in nearby normal galaxies. We also find a strong correlation of the L /L ratio with the atomic-to-molecular gas mass ratio. This correlation suggests that some of the far-infrared emission originates from dust associated with atomic gas and that its contribution is particularly important in galaxies where most of the gas is in the atomic phase.

UR - https://www.scopus.com/pages/publications/84864917435

U2 - 10.1111/j.1365-2966.2012.21453.x

DO - 10.1111/j.1365-2966.2012.21453.x

M3 - Article

AN - SCOPUS:84864917435

SN - 0035-8711

VL - 424

SP - 3050

EP - 3080

JO - Monthly Notices of the Royal Astronomical Society (MNRAS)

JF - Monthly Notices of the Royal Astronomical Society (MNRAS)

IS - 4

ER -

The JCMT Nearby Galaxies Legacy Survey - VIII: CO data and the L -L correlation in the SINGS sample

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