Large Program on Green Bank Telescope: PI: Hélène
Lyon 1 Collaborators: R. Brent Tully, J. Richard
Fisher, D. Makarov, I. Karachentsev, S. Mitronova, B. Koribalski, R.
Project Description: Galaxies acquire
motions that deviate from the universal expansion through gravitational
interactions on a wide range of scales. The radial component of these
deviant motions can be mapped with accurate measurements of distances.
One of a variety of ways to measure distances makes use of the
correlation between the luminosities of galaxies and their rotation
rates. With appropriate photometric and spectroscopic information, the
method can be applied to a majority of spiral galaxies. Samples of many
thousands of galaxies can be acquired, giving the dense spatial
coverage required to study the streams and eddies in the Cosmic Flow.
Information about galaxy rotation rates is derived from observations of
global 21cm Hydrogen line profiles. Data are accumulated at a variety
of telescopes to assure full sky coverage but foremost in importance
for the project is the Robert C. Byrd Green Bank Telescope (GBT)
because of its sensitivity and access to most of the sky. The Cosmic
Flows Large Program on GBT is our most important source of new galaxy
line profile information. Galaxies in the extreme south are observed
from Australia at the CSIRO Parkes Observatory.
A tremendous advance in optical band photometry is being realized as
observations commence with the newly commissioned wide-field imaging
facility Pan-STARRS in Hawaii. Mid-infrared imaging photometry is
equally important. Studies are under way with data acquired from two
space satellite programs: Cosmic Flows with Spitzer and Cosmic Flows
The Extragalactic Distance Database (EDD) has been developed to give
access to the diverse information involved with the measurement of
galaxy distances. The results of observations made during the course of
this program will be made available within the catalog ‘All Digital HI’
in EDD. Original optical photometry is made available in EDD through
the catalog ‘Hawaii Photometry’.
2015 MNRAS 455, 2078
Cosmicflows Constrained Local UniversE Simulations
Sorce J., Gottloeber S, Yepes G., Hoffman Y., Courtois H.M., Steinmetz M., Tully R., Pomarede D., Carlesi E.
2015 ApJ 812, 17
The Arrow-head mini-supercluster of galaxies
Pomarede D., Tully R.B., Hoffman Y., Courtois H.M.
2015 MNRAS 454, L108
Filaments from the galaxy distribution and from the velocity field in the local universe
Libeskind N., Tempel E., Hoffman Y., Tully B., Courtois H.M.
2015 MNRAS 452, 1052
Planes of satellite galaxies and the cosmic web
Libeskind N., Hoffman Y., Tully R.B., Courtois H. M., Pomare¨de D., Gottloeber S., Steinmetz M.
2015 MNRAS 449, 4494
Cosmic Bulk Flow and the Local Motion from Cosmicflows-2
Hoffman Y., Courtois H.M., Tully R.B.
2014 Nature 513, 71
The Laniakea supercluster of galaxies
Tully R. B., Courtois H., Hoffman Y., PomarĂ¨de D.
2014 ApJ 792, 129
The Calibration of the WISE W1 and W2 Tully-Fisher Relation
Neill J. D., Seibert M., Tully R.B., Courtois H., Sorce J., Jarrett T., Scowcroft V., Masci F.
2014 MNRAS 444, 527
From Spitzer Galaxy photometry to Tully-Fisher distances
Sorce J. G., Tully R. B., Courtois H. M., Jarrett T. H., Neill J. D., Shaya E. J.
2014 MNRAS R437, 3586
Simulations of the Local Universe Constrained by Observational Peculiar Velocities
J.G. Sorce, H.M. Courtois, S. Gottloeber, Y. Hoffman, R.B Tully
2013 AJ 146 , 86
Cosmicflows-2: the data
R.B. Tully, H.M. Courtois, A.E. Dolphin, J.R. Fisher, P. Heraudeau , B.A. Jacobs, I.D. Karachentsev, D. Makarov, L. Makarova, S.
Mitronova, L.Rizzi, E.J. Shaya, J.G. Sorce, P. Wu
“3D Velocity and Density
Reconstructions of the Local Universe with Cosmicflows-1”
H.M. Courtois, Y. Hoffman, R.B. Tully, S. Gottlober, 2012, ApJ
flows: University of Hawaii 2.2-m I-band photometry” H.M. Courtois, R.B. Tully,
P. Héraudeau 2011,
MNRAS.415.1935C “Cosmic Flows:
Green Bank Telescope and Parkes H I Observations”
H.M. Courtois, R.B. Tully, D.I. Makarov, S. Mitronova, B. Koribalski,
I.D. Karachentsev, J.R. Fisher 2011,
R.B. Tully, H.M. Courtois, W. Freedman, T. Jarrett, B. Madore, E.
Persson, M. Seibert, E. Shaya 2011,
“Fast motions of
galaxies in the Coma I cloud: a case of Dark Attractor?”
I.D. Karachentsev, O.G. Nasonova, H.M. Courtois 2011arXiv1109.2783K
“The Extragalactic Distance Database”
R.B. Tully, L. Rizzi, E.J. Shaya, H.M. Courtois, D.I Makarov, B.A.