Recent Papers That I Had Some Contribution To:
An IUE Atlas of Pre-Main-Sequence Stars: III.
Coadded Final Archive Spectra from the Long Wavelength Cameras
Jeff A. Valenti
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD
21218
Adam A. Fallon
Department of Physics and Astronomy, Macalester College, 1600 Grand
Avenue, Saint Paul, MN 55015
Christopher M. Johns-Krull
Department of Physics and Astronomy, Rice University, 6100 Main St.,
MS-108, Houston, TX 77005
Accepted for publication in the
The Astrophysical Journal Supplement Series.
A gzipped pdf file of the paper is available:
iue3.pdf.gz.
New IR Veiling Measurements and Constraints on Accretion Disk
Models for Classical T Tauri Stars
Christopher M. Johns-Krull
Space Sciences Laboratory, University of California, Berkeley, CA 94720
Jeff A. Valenti
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD
21218
Accepted for publication in the
The Astrophysical Journal.
A tar file of the postscript files which comprise this paper is
available:
irveil.tar.
An IUE Atlas of Pre-Main-Sequence Stars II.: Far UV Accretion
Diagnostics in T Tauri Stars
Christopher M. Johns-Krull
Space Sciences Laboratory, University of California, Berkeley, CA 94720
Jeff A. Valenti
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD
21218
Jeffrey L. Linsky
JILA, University of Colorado, Boulder, CO 80309
Accepted for publication in the
The Astrophysical Journal.
A tar file of the postscript files which comprise this paper is
available:
iue2.tar.
An IUE Atlas of Pre-Main-Sequence Stars: I. Coadded Final Archive
Spectra from the SWP Camera
Jeff A. Valenti
Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD
21218
Christopher M. Johns-Krull
Space Sciences Laboratory, University of California, Berkeley, CA 94720
Jeffrey L. Linsky
JILA, University of Colorado, Boulder, CO 80309
Accepted for publication in the
The Astrophysical Journal, Supplement Series.
A postscript file containing the manuscript, tables, and figures is
available here:
IUE1.
Measurements of Stellar Magnetic Fields
Christopher M. Johns-Krull
Space Sciences Laboratory, University of California, Berkeley, CA 94720
Jeff A. Valenti
NOAO/Kitt Peak, P.O. Box 26732, Tucson, AZ 85726
To appear in the proceedings of the 2nd "Three-Islands" Euroconference
entitled Stellar Clusters and Associations: Convection, Rotation,
and Dynamos.
A postscript pre-print of this paper is available
here.
Observation and Analysis of High-Resolution Optical Line Profiles
in Comet Hyakutake (C/1996 B2)
Michael R. Combi
Space Physics Research Laboratory, University of Michigan, Ann Arbor, MI
48109
Anita L. Cochran
Department of Astronomy, The University of Texas at Austin, Austin, TX 78712
William D. Cochran
Department of Astronomy, The University of Texas at Austin, Austin, TX 78712
David L. Lambert
Department of Astronomy, The University of Texas at Austin, Austin, TX 78712
Christopher M. Johns-Krull
Space Sciences Laboratory, University of California, Berkeley, CA 94720
Accepted to the Astrophysical Journal.
This paper can be viewed by following
this link.
Spectropolarimetry of Magnetospheric Accretion on the Classical T Tauri
Star BP Tauri
Christopher M. Johns-Krull
Space Sciences Laboratory, University of California, Berkeley, CA 94720
Jeff A. Valenti
NOAO, P.O. Box 26732, Tucson, AZ 85726
Artie P. Hatzes
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712
Antonio Kanaan
Departmento Matematica, Universidade Federal de Santa Maria, Cidade
Universitaria, Camobi, 97119-900, Santa Maria, RS, Brazil
Accepted to the Astrophysical Journal Letters.
A tar file containing the postscript files (paper plus 2 figures) can be
found here:
BP Tau II.
Measuring the Magnetic Field on the Classical T Tauri
Star BP Tauri
Christopher M. Johns-Krull
JILA, University of Colorado, Campus Box 440, Boulder, CO 80309-0440
Jeff A. Valenti
NOAO, P.O. Box 26732, Tucson, AZ 85726-6732
Christopher Koresko
Division of Geological and Planetary Sciences, California Institute
of Technology, Pasadena, CA 91125
Accepted to the Astrophysical Journal.
A tar file containing the postscript files (paper plus 6 figures) can be
found here:
BP Tau I.
A Short Wavelength IUE Atlas of Pre-Main-Sequence Stars
Christopher M. Johns-Krull
Jeff A. Valenti
Jeff L. Linsky
JILA, Campus Box 440, Uiversity of Colorado, Boulder, CO 80309-0440
To appear in the Proceedings of the 10th Cambridge Workshop on Cool
Stars, Stellar Systems, and the Sun.
The postscript file for this paper is:
CS10.
Coordinated VLA, Optical, EUVE, and RXTE Monitoring of Flares on
EQ Pegasi and AU Microscopii
Marc Gagné
Jeff A. Valenti
Christopher M. Johns-Krull
Jeff L. Linsky
JILA, Campus Box 440, Uiversity of Colorado, Boulder, CO 80309-0440
Alex Brown
CASA, University of Colorado, Boulder, CO 80309-0389
Manuel Gudel
Paul Scherrer Institute, CH-5232 Viligen PSI, Switzerland
To appear in the Proceedings of the 10th Cambridge Workshop on Cool
Stars, Stellar Systems, and the Sun.
This paper can be found at the following
link.
Spectral Synthesis of TiO Lines
Jeff A. Valenti
NOAO, P.O. Box 26732, Tucson, AZ 85726
Nikolai Piskunov
Astronomical Observatory of Uppsala University, Box 515, S-751 20 Uppsala,
Sweden
Christopher M. Johns-Krull
JILA, University of Colorado, Boulder, CO 80309
Published in the Astrophysical Journal.
A postscript file of the paper can be found here:
TiO.
The Classical T Tauri Spectroscopic Binary DQ Tau II. Emission Line
Variations With Orbital Phase
Gibor Basri
Department of Astronomy, University of California, Berkeley, CA 94720
Christopher M. Johns-Krull
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712
Robert D. Mathieu
Department of Astronomy, University of Wisconsin, Madison, WI 53706
Submitted to The Astronomical Journal, January 24, 1997.
The postscript files for this paper are in this tar file:
dqtau2.tar.
The Classical T Tauri Star Sz68: Doppler Imaging and Evidence for
Magnetospheric Accretion
Christopher M. Johns-Krull & Artie P. Hatzes
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712
Submitted to The Astrophysical Journal, January 1997.
The gzipped postscript files for this paper are in the
tar file sz68.tar.
Or you can view the re-print as a pdf
file.
Hamilton Echelle Spectroscopy of the 6 March 1993 Solar Flare
Christopher M. Johns-Krull
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712
Suzanne L. Hawley
Physics and Astronomy Department, Michigan State University, East Lansing, MI
48824
Gibor Basri
Department of Astronomy, University of California, Berkeley, CA 94720
Jeff A. Valenti
JILA, University of Colorado, Boulder, CO 80309
Accepted to The Astrophysical Journal Supplement Series,
April 1997.
The postscript files for this paper include
the text, figure 1,
figure 2,
figure 2,
figure 2,
figure 2,
figure 3,
figure 4,
figure 5,
figure 6,
figure 7,
figure 8,
figure 9,
figure 10,
figure 11,
figure 12,
figure 13,
figure 14,
figure 15,
figure 16,
figure 17,
figure 18,
table 5, and
table 7, or grab them all
together in a tar file.
Or you can view the re-print as a pdf
file.
The Classical T Tauri Spectroscopic Binary DQ Tau I. Orbital Elements
and Light Curves
Robert D. Mathieu & Keivan Stassun
Department of Astronomy, University of Wisconsin, Madison, WI 53706
Gibor Basri
Department of Astronomy, University of California, Berkeley, CA 94720
Eric L. N. Jensen
Department of Astronomy, University of Wisconsin, Madison, WI 53706
Christopher M. Johns-Krull
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712
Jeff A. Valenti
JILA, University of Colorado, Boulder, CO 80309
Lee W. Hartmann
Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138
Accepted by The Astronomical Journal, January 1997.
The postscript file for this paper will appear soon.
A Search for Variability in the Spectral Line Shapes of 51 Pegasi:
Further Evidence for a Planet
Artie P. Hatzes, William D. Cochran, & Christopher M.
Johns-Krull
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712-1083
Accepted to The Astrophysical Journal, May 1996.
The postscript file for this paper is
51 Peg.
The Spectral Variability of the T Tauri Star DF Tau
Christopher M. Johns-Krull
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712-1083
Gibor Basri
Department of Astronomy, University of California, Berkeley, CA 94720
Accepted to The Astrophysical Journal on July 11, 1996.
The postscript files for this paper include
the text, figure 1,
figure 2,
figure 3,
figure 4,
figure 5,
figure 6,
figure 7,
figure 8,
figure 9,
figure 10,
figure 11,
table 1, and
table 3.
A High-Resolution Catalogue of Cometary Emission Lines
Michael E. Brown
Division of Geological and Planetary Sciences, Caltech, Pasadena, CA 91125
Antonin H. Bouchez
Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721
Hy Spinrad
Department of Astronomy, University of California, Berkeley, CA 94720
Christopher M. Johns-Krull
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712
Submitted to the Astronomical Journal, April 1996
Postscript files for this paper are located at
Comet Catalogue
Dynamic Processes in Be Star Atmospheres IV. Common Attributes of Line
Profile Dimples
Myron A. Smith and K. Plett
CSC/IUE Observatory, 10000A Aerospace Rd., Lanham-Seabrook, MD 20706
Christopher M. Johns-Krull and Gibor S. Basri
Department of Astronomy, University of California, Berkeley, CA 94720
J. Thomson
Ritter Observatory, University of Toledo, Toledo, OH 43606
J. P. Aufdenberg
David Dunlap Observatory, Box 360, Richmond Hill, Ontario, L4C 4Y6, Canada
Submitted to The Astrophysical Journal, February 1996
Postscript files for this paper will be available soon.
Limits on the Surface Differential Rotation of Rapidly Rotating Stars
and Implications for Polar Spots
Christopher M. Johns-Krull
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712-1083
Published in Stellar Surface Structure, IAU Symp. 176,
Poster Proceedings, 1995, K.G. Strassmeier (ed.), p. 57.
The postscript file for this paper is
IAU176
Limits on the Differential Rotation of T Tauri Stars
Christopher M. Johns-Krull
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712-1083
Accepted to Astronomy and Astrophysics, June 21, 1995
The postscript files for this paper include
the text, figure 1a, figure 1b,
figure 1c, figure 1d, figure 2,
figure 3, and figure 4
Detection of Strong Magnetic Fields on M Dwarfs
Christopher M. Johns-Krull
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712-1083
Jeff A. Valenti
JILA, University of Colorado, Boulder, CO 80309-0440
Accepted to the Astrophysical Journal Letters, December 21,
1995
The postscript files for this paper include
the text, figure 1 (a color plot), figure 2, and
figure 3