Astrophysical: Radial velocity

  • Publication
    Infrared photometry of upper main sequence stars in M39
    Infrared photometry of 19 Main sequence stars in the open cluster M39 is presented. Infrared-infrared and optical-infrared color-color and color-magnitude...
  • Publication
    Interstellar and intergalactic gas in the direction of SN 1993J in M81
    During the first few nights following its discovery, we observed the interstellar Ca II and Na I lines towards supernova 1993J at high spectral resolution (full...
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    IRAS 17423-1755: A BQ() star with a variable velocity outflow
    Infrared Astronomy Satellite (IRAS) 17423-1755 has been identified as a BQ() star. Its more remarkable observed features are large radial velocities, huge line...
  • Publication
    IRAS 22568 + 6141 - A new bipolar planetary nebula
    The identification of a bipolar planetary nebula is reported with a description of its characteristics. The nebula IRAS 22568 + 6141 has an extension of 8...
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    KELT-24b: A 5M <SUB>J</SUB> Planet on a 5.6 day Well-aligned Orbit around the Young V = 8.3 F-star HD 93148
    We present the discovery of KELT-24 b, a massive hot Jupiter orbiting a bright (V = 8.3 mag, K = 7.2 mag) young F-star with a period of 5.6 days. The host star...
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    Limits on the Spin-Orbit Angle and Atmospheric Escape for the 22 Myr Old Planet AU Mic b
    We obtained spectra of the pre-main-sequence star AU Microscopii during a transit of its Neptune-sized planet to investigate its orbit and atmosphere. We used...
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    Migration and Evolution of giant ExoPlanets (MEEP). I. Nine Newly Confirmed Hot Jupiters from the TESS Mission
    Hot Jupiters were many of the first exoplanets discovered in the 1990s, but in the decades since their discovery the mysteries surrounding their origins have...
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    Observations of solar p-modes with L of not greater than 5
    Results are presented for the sun's radial velocity in integrated sunlight. A resonant scattering spectrometer has been used to determine the frequencies and...
  • Publication
    On the Metamorphosis of the Bailey Diagram for RR Lyrae Stars
    We collected over 6000 high-resolution spectra of four dozen field RR Lyrae (RRL) variables pulsating either in the fundamental (39 RRab) or in the first...