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J. Ulvestad

14 papers hereh-index 415k citations188 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • sole author1
  • first author1
  • middle author10
  • last author2

Across the 14 of 14 papers where every author was matched, so the position is known.

fields
  • astro-ph14

identity via Semantic Scholar / OpenAlex

activity
19982007
most citedCRATES: An All-Sky Survey of Flat-Spectrum Radio Sources

455 citations · 469 across the 5 of their papers we have counts for

collaborators
Showing 2000Show all

3 papers · 1 filter

astro-ph2000

The Nature of Flat-Spectrum Nuclear Radio Emission in Seyfert Galaxies

C. G. Mundell, A. S. Wilson, J. S. Ulvestad +1

Parsec-scale VLBA imaging of five Seyfert galaxies with flat-spectrum radio nuclei was conducted to determine whether the flat spectrum represents thermal emission from the accreti…

astro-ph2000

Parsec-Scale Jets and Tori in Seyfert Galaxies

A. L. Roy, J. M. Wrobel, A. S. Wilson +6

What causes the dichotomy between very powerful and very weak radio emission from AGNs? Perhaps the engines are the same but the jets get disrupted by dense ISM in radio-quiet obje…

astro-ph2000

Slow Jets in Seyfert Galaxies: NGC 1068

A. L. Roy, A. S. Wilson, J. S. Ulvestad +1

We have used the Very Long Baseline Array at 5 GHz to image the nucleus of NGC 1068 at two epochs separated by 2.92 yr. No relative motion was detected between the high brightness-…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.