Search Results - "LIEBERT, James"

The Ages of the Thin Disk, Thick Disk, and the Halo from Nearby White Dwarfs by Kilic, Mukremin, Munn, Jeffrey A., Harris, Hugh C., Hippel, Ted von, Liebert, James W., Williams, Kurtis A., Jeffery, Elizabeth, DeGennaro, Steven

“…We present a detailed analysis of the white dwarf luminosity functions derived from the local 40 pc sample and the deep proper motion catalog of Munn et al…”
Get full text

The theory of brown dwarfs and extrasolar giant planets by Burrows, Adam, Hubbard, W. B., Lunine, J. I., Liebert, James

Get full text

On the Spectral Evolution of Cool, Helium-Atmosphere White Dwarfs: Detailed Spectroscopic and Photometric Analysis of DZ Stars by Dufour, P, Bergeron, P, Liebert, James, Harris, H. C, Knapp, G. R, Anderson, S. F, Hall, Patrick B, Strauss, Michael A, Collinge, Matthew J, Edwards, Matt C

Get full text

A COMPREHENSIVE SPECTROSCOPIC ANALYSIS OF DB WHITE DWARFS by BERGERON, P, WESEMAEL, F, FONTAINE, G, LIEBERT, James, DUFOUR, Pierre, BEAUCHAMP, A, HUNTER, C, SAFFER, Rex A, GIANNINAS, A, RUIZ, M. T, LIMOGES, M.-M, DUFOUR, Patrick

Get full text

Dwarfs Cooler than “M”: The Definition of Spectral Type “L” Using Discoveries from the 2 Micron All‐Sky Survey (2MASS) by Kirkpatrick, J. Davy, Reid, I. Neill, Liebert, James, Cutri, Roc M., Nelson, Brant, Beichman, Charles A., Dahn, Conard C., Monet, David G., Gizis, John E., Skrutskie, Michael F.

Get full text

A Catalog of Spectroscopically Identified White Dwarf Stars in the First Data Release of the Sloan Digital Sky Survey by Kleinman, S. J, Harris, Hugh C, Eisenstein, Daniel J, Liebert, James, Nitta, Atsuko, Krzesiński, Jurek, Munn, Jeffrey A, Dahn, Conard C, Hawley, Suzanne L, Pier, Jeffrey R, Schmidt, Gary, Silvestri, Nicole M, Smith, J. Allyn, Szkody, Paula, Strauss, Michael A, Knapp, G. R, Collinge, Matthew J, Mukadam, A. S, Koester, D, Uomoto, Alan, Schlegel, D. J, Anderson, Scott F, Brinkmann, J, Lamb, D. Q, Schneider, Donald P, York, Donald G

“…We present the full spectroscopic white dwarf and hot subdwarf sample from the Sloan Digital Sky Survey (SDSS) first data release, DR1. We find 2551 white…”
Get full text

Trigonometric Parallaxes for Two Late-Type Subdwarfs: LSR 1425+71 (sdM8.0) and the Binary LSR 1610–00 (sd?M6pec) by Dahn, Conard C, Harris, Hugh C, Levine, Stephen E, Tilleman, Trudy, Monet, Alice K. B, Stone, Ronald C, Guetter, Harry H, Canzian, Blaise, Pier, Jeffrey R, Hartkopf, William I, Liebert, James, Cushing, Michael

“…Trigonometric parallax astrometry and BVI photometry are presented for two late-type subdwarf candidates, LSR 1425+71 (sdM8.0) and LSR 1610-00 (sd?M6pec). For…”
Get full text

Magnetic White Dwarfs from the Sloan Digital Sky Survey: The First Data Release by Schmidt, Gary D, Harris, Hugh C, Liebert, James, Eisenstein, Daniel J, Anderson, Scott F, Brinkmann, J, Hall, Patrick B, Harvanek, Michael, Hawley, Suzanne, Kleinman, S. J, Knapp, Gillian R, Krzesinski, Jurek, Lamb, Don Q, Long, Dan, Munn, Jeffrey A, Neilsen, Eric H, Newman, Peter R, Nitta, Atsuko, Schlegel, David J, Schneider, Donald P, Silvestri, Nicole M, Smith, J. Allyn, Snedden, Stephanie A, Szkody, Paula, Vanden Berk, Dan

Get full text

A Radio Search for Pulsar Companions to Sloan Digital Sky Survey Low-Mass White Dwarfs by Agüeros, Marcel A, Camilo, Fernando, Silvestri, Nicole M, Kleinman, S. J, Anderson, Scott F, Liebert, James W

Get full text

Additional Ultracool White Dwarfs Found in the Sloan Digital Sky Survey by Harris, Hugh C, Gates, Evalyn, Gyuk, Geza, Subbarao, Mark, Anderson, Scott F, Hall, Patrick B, Munn, Jeffrey A, Liebert, James, Knapp, Gillian R, Bizyaev, D, Malanushenko, E, Malanushenko, V, Pan, K, Schneider, Donald P, Smith, J. Allyn

“…We identify seven new ultracool white dwarfs discovered in the Sloan Digital Sky Survey (SDSS). The SDSS photometry, spectra, and proper motions are presented,…”
Get full text

No Neutron Star Companion to the Lowest Mass SDSS White Dwarf by Agüeros, Marcel A, Heinke, Craig, Camilo, Fernando, Kilic, Mukremin, Anderson, Scott F, Freire, Paulo, Kleinman, Scot J, Liebert, James W, Silvestri, Nicole M

“…SDSS J091709.55+463821.8 (hereafter J0917+4638) is the lowest surface gravity white dwarf (WD) currently known, with log g = 5.55 - 0.05 (M 0.17 M ). Such…”
Get full text

Discovery of Extended Blue Horizontal Branches in Two Metal-rich Globular Clusters by Rich, R. Michael, Sosin, Craig, Djorgovski, S. George, Piotto, Giampaolo, King, Ivan R, Renzini, Alvio, Phinney, E. Sterl, Dorman, Ben, Liebert, James, Meylan, Georges

Get full text

Discovery of New Ultracool White Dwarfs in the Sloan Digital Sky Survey by Gates, Evalyn, Gyuk, Geza, Harris, Hugh C, Subbarao, Mark, Anderson, Scott, Kleinman, S. J, Liebert, James, Brewington, Howard, Brinkmann, J, Harvanek, Michael, Krzesinski, Jurek, Lamb, Don Q, Long, Dan, Neilsen, Jr., Eric H, Newman, Peter R, Nitta, Atsuko, Snedden, Stephanie A

Get full text

BRI 0021–0214: Another Surprise at the Bottom of the Main Sequence by Reid, I. Neill, Kirkpatrick, J. Davy, Gizis, J. E, Liebert, James

“…We report the detection of an Halpha flare on the low-luminosity M9.5 dwarf BRI 0021-0214. This star has rapid rotation, vsin i approximately 40 km s-1, but…”
Get full text

ENIGMAS FROM THE SLOAN DIGITAL SKY SURVEY DR7 KLEINMAN WHITE DWARF CATALOG by Liebert, James, Ferrario, Lilia, Wickramasinghe, Dayal T., Smith, Paul S.

“…ABSTRACT We report results from a continuation of our searches for high field magnetic white dwarfs (WDs) paired in a detached binary with non-degenerate…”
Get full text

A COMPREHENSIVE SPECTROSCOPIC ANALYSIS OF DB WHITE DWARFS by Bergeron, P

“…We present a detailed analysis of 108 helium-line (DB) white dwarfs based on model atmosphere fits to high signal-to-noise optical spectroscopy. We derive a…”
Get full text

SEARCHES FOR MAGNETIC FIELDS IN WHITE DWARFS SINCE BABCOCK by LIEBERT, JAMES

“…Discoveries of magnetic fields in 26 white dwarfs since 1970 do not negate the basic inference from the work of Babcock—that most of the over 1000 known white…”
Get full text

White dwarf stars with carbon atmospheres by Dufour, P, Fontaine, G, Behara, N, Liebert, J

“…White dwarfs represent the endpoint of stellar evolution for stars with initial masses between approximately 0.07 and 8-10, where is the mass of the Sun (more…”
Get full text

THE NUCLEUS OF THE PLANETARY NEBULA EGB 6 AS A POST-MIRA BINARY by Bond, Howard E, Ciardullo, Robin, Esplin, Taran L, Hawley, Steven A, Liebert, James, Munari, Ulisse

“…ABSTRACT EGB 6 is a faint, large, ancient planetary nebula (PN). Its central star, a hot DAOZ white dwarf (WD), is a prototype of a rare class of PN nuclei…”
Get full text

THE AGE AND STELLAR PARAMETERS OF THE PROCYON BINARY SYSTEM by Liebert, James, Fontaine, Gilles, Young, Patrick A, Williams, Kurtis A, Arnett, David

“…The Procyon AB binary system (orbital period 40.838 yr, a newly refined determination) is near and bright enough that the component radii, effective…”
Get full text