James S. Ulvestad

41 results

Citation Summary

Most Recent

Radio Emission from Young Supernovae and Supernova Remnants in Arp 299

James S. Ulvestad

(Sep, 2009)

Published in:
- Astron.J. 138 (2009) 1529
•
e-Print:
- 0909.3534 [astro-ph.CO]

pdfDOI

reference search25 citations

Steep-Spectrum Radio Emission from the Low-Mass Active Galactic Nucleus GH 10

(Jul, 2008)

Published in:
- Astrophys.J. 686 (2008) 838
•
e-Print:
- 0807.3114 [astro-ph]

pdfDOI

reference search10 citations

Radio Emission from the Intermediate-mass Black Hole in the Globular Cluster G1

(Apr, 2007)

Published in:
- Astrophys.J.Lett. 661 (2007) L151
•
e-Print:
- 0704.1458 [astro-ph]

pdfDOI

reference search57 citations

CRATES: An All-Sky Survey of Flat-Spectrum Radio Sources

Stephen Edward Healey
(
- KIPAC, Menlo Park
)
,
Roger W. Romani
(
- KIPAC, Menlo Park
)
,
Gregory B. Taylor
(
- New Mexico U.
)
,
Elaine M. Sadler
(
- Sydney U.
)
,
Roberto Ricci
(
- Australia, CSIRO, Epping
)

et al.

(Feb, 2007)

Published in:
- Astrophys.J.Suppl. 171 (2007) 61-71
•
e-Print:
- astro-ph/0702346 [astro-ph]

linksDOI

reference search307 citations

A VLBI Search for Radio Supernovae in Wolf Rayet Galaxies

James S. Ulvestad
(
- NRAO, Socorro
)
,
Kelsey E. Johnson
(
- Virginia U., Astron. Dept.
)
,
Susan G. Neff
(
- NASA, Goddard
)

(Jan, 2007)

Published in:
- Astron.J. 133 (2007) 1868-1873
•
e-Print:
- astro-ph/0701038 [astro-ph]

pdfDOI

reference search11 citations

The radio quiescence of active galaxies with high accretion rates

(Sep, 2005)

Published in:
- Astrophys.J. 636 (2005) 56-62
•
e-Print:
- astro-ph/0509198 [astro-ph]

pdfDOI

reference search76 citations

VLBA identification of the milliarcsecond active nucleus in the Seyfert galaxy NGC 4151

James S. Ulvestad
(
- NRAO, Socorro
)
,
Diane S. Wong
(
- UC, Berkeley, Astron. Dept.
)
,
Gregory B. Taylor
(
- NRAO, Socorro
)
,
Jack F. Gallimore
(
- Bucknell U.
)
,
Carole G. Mundell
(
- Liverpool John Moores U., ARI
)

(May, 2005)

Published in:
- Astron.J. 130 (2005) 936-944
•
e-Print:
- astro-ph/0505141 [astro-ph]

pdfDOI

reference search33 citations

The Size of the radio-emitting region in low-luminosity active galactic nuclei

James M. Anderson
(
- NRAO, Socorro and
- New Mexico Tech.
)
,
James S. Ulvestad
(
- NRAO, Socorro
)

(Apr, 2005)

Published in:
- Astrophys.J. 627 (2005) 674-700
•
e-Print:
- astro-ph/0504066 [astro-ph]

pdfDOI

reference search32 citations

VLBA imaging polarimetry of active galactic nuclei - An Automated approach

et al.

(Mar, 2005)

Published in:
- Astrophys.J.Suppl. 159 (2005) 27
•
e-Print:
- astro-ph/0503234 [astro-ph]

linksDOI

reference search31 citations

VLBA imaging of central engines in radio quiet quasars

#10

James S. Ulvestad
(
- NRAO, Socorro
)
,
Robert R.J. Antonucci
(
- UC, Santa Barbara
)
,
Richard Barvainis
(
- NSF, Wash., D.C. and
- Gettysburg Coll.
)

(Nov, 2004)

Published in:
- Astrophys.J. 621 (2005) 123-129
•
e-Print:
- astro-ph/0411678 [astro-ph]

pdfDOI

reference search73 citations

A Supernova factory in the merger system Arp 299

#11

(Jun, 2004)

Published in:
- Astrophys.J. 611 (2004) 186-199
•
e-Print:
- astro-ph/0406421 [astro-ph]

pdfDOI

reference search51 citations

Exploring the nucleus of the gigamaser galaxy TXS 2226-184

#12

Greg B. Taylor
(
- NRAO, Socorro
)
,
A.B. Peck
(
- Harvard-Smithsonian Ctr. Astrophys.
)
,
J.S. Ulvestad
(
- NRAO, Socorro
)
,
C.P. O'Dea
(
- Baltimore, Space Telescope Sci.
)

(May, 2004)

Published in:
- Astrophys.J. 612 (2004) 780-785
•
e-Print:
- astro-ph/0405484 [astro-ph]

pdfDOI

reference search4 citations

Blazar counterparts for 3EG sources at -40 < decl. < 0: Pushing south through the bulge

#13

David Sowards-Emmerd
(
- Stanford U., Phys. Dept. and
- SLAC
)
,
Roger W. Romani
(
- Stanford U., Phys. Dept.
)
,
Peter F. Michelson
(
- Stanford U., Phys. Dept. and
- SLAC
)
,
James S. Ulvestad
(
- NRAO, Socorro
)

(Mar, 2004)

Published in:
- Astrophys.J. 609 (2004) 564-575
•
e-Print:
- astro-ph/0403692 [astro-ph]

linksDOI

reference search56 citations

The Radio continuum of the metal - deficient blue compact dwarf galaxy SBS 0335-052

#14

Leslie K. Hunt
(
- IRA, Florence
)
,
Kristy K. Dyer
(
- NRAO, Socorro
)
,
Trinh X. Thuan
(
- Virginia U., Astron. Dept.
)
,
James S. Ulvestad
(
- NRAO, Socorro
)

(Jan, 2004)

Published in:
- Astrophys.J. 606 (2004) 853-861
•
e-Print:
- astro-ph/0401394 [astro-ph]

pdfDOI

reference search26 citations

Low - luminosity AGNs at the highest resolution: Jets or accretion flows?

#15

James M. Anderson
(
- NRAO, Socorro and
- New Mexico Tech.
)
,
James S. Ulvestad
(
- NRAO, Socorro
)
,
Luis C. Ho
(
- Carnegie Inst. Observ.
)

(Nov, 2003)

Published in:
- Astrophys.J. 603 (2004) 42-50
•
e-Print:
- astro-ph/0311303 [astro-ph]

pdfDOI

reference search54 citations

Radio emission associated with ultraluminous x-ray sources in the galaxy merger ngc 3256

#16

(Oct, 2003)

Published in:
- Astrophys.J. 599 (2003) 1043-1048
•
e-Print:
- astro-ph/0310499 [astro-ph]

pdfDOI

reference search22 citations

VSOP observations of the EGRET blazar 1633+382

#17

(Sep, 2003)

Published in:
- ASP Conf.Ser. 340 (2005) 80
•
Contribution to:
- Future Directions in High Resolution Astronomy: A Celebration of the 10th Anniversary of the VLBA, 80
•
e-Print:
- astro-ph/0309407 [astro-ph]

pdf

reference search0 citations

The flaring H2O megamaser and compact radio source in Mrk 348

#18

A.B. Peck
(
- Bonn, Max Planck Inst., Radioastron. and
- NRAO, Socorro and
- Kentucky U. and
- Bucknell U.
)
,
C. Henkel
(
- Bonn, Max Planck Inst., Radioastron. and
- NRAO, Socorro and
- Kentucky U. and
- Bucknell U.
)
,
J.S. Ulvestad
(
- Bonn, Max Planck Inst., Radioastron. and
- NRAO, Socorro and
- Kentucky U. and
- Bucknell U.
)
,
A. Brunthaler
(
- Bonn, Max Planck Inst., Radioastron. and
- NRAO, Socorro and
- Kentucky U. and
- Bucknell U.
)
,
H. Falcke
(
- Bonn, Max Planck Inst., Radioastron. and
- NRAO, Socorro and
- Kentucky U. and
- Bucknell U.
)

et al.

(Mar, 2003)

Published in:
- Astrophys.J. 590 (2003) 149-161
•
e-Print:
- astro-ph/0303423 [astro-ph]

pdfDOI

reference search60 citations

VLBI imaging of Seyfert galaxies

#19

James S. Ulvestad
(
- NRAO, Socorro
)

(Jan, 2003)

Published in:
- ASP Conf.Ser. 300 (2003) 97
•
Contribution to:
- Radio Astronomy at the Fringe, 97
•
e-Print:
- astro-ph/0301057 [astro-ph]

pdf

reference search4 citations

A Search for active galactic nuclei in SC galaxies with H II spectra

#20

James S. Ulvestad
(
- NRAO, Socorro
)
,
Luis C. Ho
(
- Carnegie Inst. Observ.
)

(Aug, 2002)

Published in:
- Astrophys.J. 581 (2002) 925-931
•
e-Print:
- astro-ph/0208460 [astro-ph]

pdfDOI

reference search16 citations

Radio sources in low-luminosity active galactic nuclei. 3. AGNs in a distance-limited sample of LLAGNS

#21

Neil M. Nagar
(
- Arcetri Observ.
)
,
Heino Falcke
(
- Bonn, Max Planck Inst., Radioastron.
)
,
Andrew S. Wilson
(
- Maryland U. and
- Baltimore, Space Telescope Sci.
)
,
James S. Ulvestad
(
- NRAO, Socorro
)

(Jul, 2002)

Published in:
- Astron.Astrophys. 392 (2002) 53
•
e-Print:
- astro-ph/0207176 [astro-ph]

pdfDOI

reference search136 citations

Gigahertz-peaked spectrum radio sources in nearby galaxies

#22

(Jan, 2002)

Published in:
- ASP Conf.Ser. 258 (2002) 171
•
e-Print:
- astro-ph/0201156 [astro-ph]

pdf

reference search3 citations

The origin of radio emission in low-luminosity active galactic nuclei: jets, accretion flows, or both?

#23

(Oct, 2001)

Published in:
- Astrophys.J.Lett. 562 (2001) L133
•
e-Print:
- astro-ph/0110535 [astro-ph]

pdfDOI

reference search76 citations

The importance of shocks in the ionization of the narrow line region of seyferts

#24

(Oct, 2001)

Published in:
- ASP Conf.Ser. 255 (2002) 215
•
e-Print:
- astro-ph/0110537 [astro-ph]

pdf

reference search0 citations

Testing the unified model with an infrared selected sample of seyferts

#25

et al.

(Oct, 2001)

Published in:
- ASP Conf.Ser. 284 (2002) 173
•
e-Print:
- astro-ph/0110538 [astro-ph]

pdf

reference search0 citations

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James S. Ulvestad

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