WIYN Integral-Field Kinematics of Disk Galaxies

M. Bershady; M. Verheijen; D. Andersen

WIYN Integral-Field Kinematics of Disk Galaxies

M. Bershady, M. Verheijen, D. Andersen

Sterrenkunde

Onderzoeksoutput › Academic

Samenvatting

We have completed a new fiber array, SparsePak, optimized for low-surface-brightness studies of extended sources on the WIYN telescope. We are now using this array as a measuring engine of velocity and velocity-dispersion fields of stars and ionized gas in disk galaxies from high to low surface-brightness. Here we present commissioning data on the velocity ellipsoids, surface densities and mass-to-light ratios in two blue, high surface-brightness, yet small disks. If our preliminary results survive further observation and more sophisticated analysis, then NGC 3949 has σz/σR>> 1, implying strong vertical heating, while NGC 3982's disk is substantially sub-maximal. These galaxies are strikingly unlike the Milky Way, and yet would be seen more easily at high redshift.

Originele taal-2	English
Pagina's	43-46
Status	Published - 1-dec-2002
Evenement	Disks of Galaxies: Kinematics, Dynamics and Peturbations, - San Francisco, California, United States Duur: 20-feb-2015 → …

Conference

Conference	Disks of Galaxies: Kinematics, Dynamics and Peturbations,
Land/Regio	United States
Stad	San Francisco, California
Periode	20/02/2015 → …

Toegang tot document

http://adsabs.harvard.edu/abs/2002ASPC..275...43B

Citeer dit

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title = "WIYN Integral-Field Kinematics of Disk Galaxies",

abstract = "We have completed a new fiber array, SparsePak, optimized for low-surface-brightness studies of extended sources on the WIYN telescope. We are now using this array as a measuring engine of velocity and velocity-dispersion fields of stars and ionized gas in disk galaxies from high to low surface-brightness. Here we present commissioning data on the velocity ellipsoids, surface densities and mass-to-light ratios in two blue, high surface-brightness, yet small disks. If our preliminary results survive further observation and more sophisticated analysis, then NGC 3949 has σz/σR>> 1, implying strong vertical heating, while NGC 3982's disk is substantially sub-maximal. These galaxies are strikingly unlike the Milky Way, and yet would be seen more easily at high redshift.",

author = "M. Bershady and M. Verheijen and D. Andersen",

note = "Disks of Galaxies: Kinematics, Dynamics and Perturbations, vol. 275; ISBN 1-58381-117-6; Disks of Galaxies: Kinematics, Dynamics and Peturbations, ; Conference date: 20-02-2015",

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TY - CONF

T1 - WIYN Integral-Field Kinematics of Disk Galaxies

AU - Bershady, M.

AU - Verheijen, M.

AU - Andersen, D.

N1 - Disks of Galaxies: Kinematics, Dynamics and Perturbations, vol. 275; ISBN 1-58381-117-6

PY - 2002/12/1

Y1 - 2002/12/1

N2 - We have completed a new fiber array, SparsePak, optimized for low-surface-brightness studies of extended sources on the WIYN telescope. We are now using this array as a measuring engine of velocity and velocity-dispersion fields of stars and ionized gas in disk galaxies from high to low surface-brightness. Here we present commissioning data on the velocity ellipsoids, surface densities and mass-to-light ratios in two blue, high surface-brightness, yet small disks. If our preliminary results survive further observation and more sophisticated analysis, then NGC 3949 has σz/σR>> 1, implying strong vertical heating, while NGC 3982's disk is substantially sub-maximal. These galaxies are strikingly unlike the Milky Way, and yet would be seen more easily at high redshift.

AB - We have completed a new fiber array, SparsePak, optimized for low-surface-brightness studies of extended sources on the WIYN telescope. We are now using this array as a measuring engine of velocity and velocity-dispersion fields of stars and ionized gas in disk galaxies from high to low surface-brightness. Here we present commissioning data on the velocity ellipsoids, surface densities and mass-to-light ratios in two blue, high surface-brightness, yet small disks. If our preliminary results survive further observation and more sophisticated analysis, then NGC 3949 has σz/σR>> 1, implying strong vertical heating, while NGC 3982's disk is substantially sub-maximal. These galaxies are strikingly unlike the Milky Way, and yet would be seen more easily at high redshift.

M3 - Paper

SP - 43

EP - 46

T2 - Disks of Galaxies: Kinematics, Dynamics and Peturbations,

Y2 - 20 February 2015

ER -