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researcher

K. Hardegree-Ullman

59 papers hereh-index 211.2k citations98 works total

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

author position
  • first author7
  • middle author47
  • last author3

Across the 57 of 59 papers where every author was matched, so the position is known.

fields
  • astro-ph.EP49
  • astro-ph.SR9
  • astro-ph.IM1

identity via Semantic Scholar / OpenAlex

activity
20122026
most citedKepler Planet Occurrence Rates for Mid-Type M Dwarfs as a Function of Spectral Type

176 citations · 1.6k across the 58 of their papers we have counts for

collaborators
Showing 2021Show all

3 papers · 1 filter

astro-ph.IM2021

Final Report for SAG 22: A Target Star Archive for Exoplanet Science

Natalie R. Hinkel, Joshua Pepper, Christopher C. Stark +33

Present and upcoming NASA missions will be intensively observing a selected, partially overlapping set of stars for exoplanet studies. Key physical and chemical information about t…

astro-ph.EP2021★ 29 cited

Scaling K2. IV. A Uniform Planet Sample for Campaigns 1-8 and 10-18

J. K. Zink, K. K. Hardegree-Ullman, J. L. Christiansen +6

We provide the first full K2 transiting exoplanet sample, using photometry from Campaigns 1-8 and 10-18, derived through an entirely automated procedure. This homogeneous planet ca…

astro-ph.EP2021★ 13 cited

K2-138 g: Spitzer Spots a Sixth Planet for the Citizen Science System

Kevin K. Hardegree-Ullman, Jessie L. Christiansen, David R. Ciardi +10

K2 greatly extended Kepler's ability to find new planets, but it was typically limited to identifying transiting planets with orbital periods below 40 days. While analyzing $K2…

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