The Seventh Data Release of the Sloan Digital Sky Survey (2009)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Allende Prieto, Carlos, An, Deokkeun, ...
This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDSS-II. It includes...
Mapping the Galactic Halo VIII: Quantifying substructure (2009)
Starkenburg, Else, Helmi, Amina, Morrison, Heather L., Harding, Paul, Van Woerden, Hugo, Mateo, Mario, ...
We have measured the amount of kinematic substructure in the Galactic halo using the final data set from the Spaghetti project, a pencil-beam high latitude sky survey. Our sample contains 101...
The seventh data release of the sloan digital sky survey (2009)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Allende Prieto, Carlos, An, Deokkeun, ...
Do the nearby BHB stars belong to the Thick Disk or the Halo? (2008)
Kinman, T. D., Morrison, Heather L., Brown, Warren R.
We study the Milky Way region Z
An, Deokkeun, Johnson, Jennifer A., Clem, James L., Yanny, Brian, Rockosi, Constance M., Morrison, Heather L., ...
We present photometry for globular and open cluster stars observed with the Sloan Digital Sky Survey (SDSS). In order to exploit over 100 million stellar objects with r < 22.5 mag observed by SDSS,...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Prieto, Carlos Allende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
The sixth data release of the sloan digital sky survey (2008)
Adelman-McCarthy, Jennifer K., Agüros, Marcel A., Allam, Sahar S., Allende Prieto, Carlos, Anderson, Kurt S. J., Anderson, Scott F., ...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
US Gemini Project Office, National Optical Astronomy Observatories (2007)
To Ri Es, M. E. Putman, Anne M. Fry, Heather L. Morrison, Paul Harding, Todd Boroson
. We have obtained surface photometry of the nearby edge-on S0 galaxy NGC 3115 reliably to R = 28.0 mag / sq. arcsec (B = 29.5 mag / sq. arcsec) with the Burrell Schmidt. The galaxy's light is...
What is a Halo? Observations of Faint Starlight Around Disk Galaxies (2007)
Heather Morrison Depts, Heather L. Morrison
. Early observations of the stellar halos of nearby disk galaxies are discussed. Since most of the currently available data come from deep CCD surface photometry, and it can be difficult to...
Halo Star Streams in the Solar Neighborhood (2007)
Kepley, Amanda A., Morrison, Heather L., Helmi, Amina, Kinman, T. D., Van Duyne, Jeffrey, Martin, John C., ...
We have assembled a sample of halo stars in the solar neighborhood to look for halo substructure in velocity and angular momentum space. Our sample includes red giants, RR Lyrae, and red horizontal...
Planetary Nebulae Kinematics in M31 (2004)
Hurley-Keller, Denise, Morrison, Heather L., Harding, Paul, Jacoby, George
We present kinematics of 135 planetary nebulae in M31 from a survey covering 3.9 square degrees and extending out to 15 kpc from the southwest major axis and more than 20 kpc along the minor axis....
Feldmeier, John J., Mihos, J. Christopher, Morrison, Heather L., Harding, Paul, Kaib, Nathan, Dubinski, John
We report the search for intracluster light in four Abell Type II/III (non-cD) galaxy clusters: Abell 801, 1234, 1553, & 1914. We find on average that these clusters contain $\sim$ 10% of their...
Results from a diffuse intracluster light survey (2003)
Feldmeier, John J., Mihos, J. Christopher, Morrison, Heather L., Harding, Paul, McBride, Cameron
We give an update of our ongoing survey for intracluster light (ICL), in a sample of distant Abell clusters. We find that the amount of intracluster starlight is comparable to that seen in nearby...
Using Intracluster Light to Study Cluster Evolution (2003)
Feldmeier, John J., Mihos, J. Christopher, Morrison, Heather L., Harding, Paul, Kaib, Nathan
We present some early results from our deep imaging survey of galaxy clusters intended to detect and study intracluster light (ICL). From our observations to date, we find that ICL is common in...
Feldmeier, John J., Mihos, J. Christopher, Morrison, Heather L., Rodney, Stephen A., Harding, Paul
We report the initial results of a deep imaging survey of galaxy clusters. The primary goals of this survey are to quantify the amount of intracluster light as a function of cluster properties, and...
Mapping the Galactic Halo III. Simulated Observations of Tidal Streams (2000)
Harding, Paul, Morrison, Heather L., Olszewski, Edward W., Arabadjis, John, Mateo, Mario, Dohm-Palmer, R. C., ...
We have simulated the evolution of tidal debris in the Galactic halo in order to guide our ongoing survey to determine the fraction of halo mass accreted via satellite infall. Contrary to naive...
Mapping the Galactic Halo I. The `Spaghetti' Survey (2000)
Morrison, Heather L., Mateo, Mario, Olszewski, Edward W., Harding, Paul, Dohm-Palmer, R. C., Freeman, Kenneth C., ...
We describe a major survey of the Milky Way halo designed to test for kinematic substructure caused by destruction of accreted satellites. We use the Washington photometric system to identify halo...
Deep CCD Surface Photometry of the Edge-On Spiral NGC 4244 (1999)
Fry, Anne M., Morrison, Heather L., Harding, Paul, Boroson, Todd A.
We have obtained deep surface photometry of the edge-on spiral galaxy NGC 4244. Our data reliably reach 27.5 R magnitude arcsec^{-2}, a significant improvement on our earlier deep CCD surface...
Mateo, Mario, Olszewski, Edward W., Morrison, Heather L.
We have obtained deep photometric data in 24 fields along the southeast extension of the major axis of the Sagittarius dwarf spheroidal (Sgr dSph) galaxy, and in four fields along the northwest...
A New Analysis of RR Lyrae Kinematics in the Solar Neighborhood (1998)
Martin, John C., Morrison, Heather L.
Full space velocities are computed for a sample of 130 nearby RR Lyrae variables using both ground-based and Hipparcos proper motions. In many cases proper motions from multiple sources have been...
A Faint Luminous Halo that May Trace the Dark Matter around Spiral Galaxy NGC~5907 (1994)
Sackett, Penny D., Morrison, Heather L., Harding, Paul, Boroson, Todd A.
The presence of unseen halos of ``dark matter'' has long been inferred from the high rotation speeds of gas and stars in the outer parts of spiral galaxies$^{1}$. The volume density of this dark...