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Brorfelde Observatory: Tølløse, Zealand, DK

2020-02-26 to present | Head of astronomy
Employment
Source: Self-asserted source
Martti Holst Kristiansen

Works (50 of 77)

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TIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days

The Astrophysical Journal
2024-10 | Journal article
Contributors: Kostov, V. B.; Rappaport, S. A.; Borkovits, T.; Powell, B. P.; Gagliano, R.; Omohundro, M.; Bíró, I. B.; Moe, M.; Howell, S. B.; Mitnyan, T. et al.
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NASA Astrophysics Data System

Confirmation and Characterization of the Eccentric, Warm Jupiter TIC 393818343 b with a Network of Citizen Scientists

The Astronomical Journal
2024-07 | Journal article
Contributors: Sgro, Lauren A.; Dalba, Paul A.; Esposito, Thomas M.; Marchis, Franck; Dragomir, Diana; Villanueva, Steven; Fulton, Benjamin; Billiani, Mario; Loose, Margaret; Meneghelli, Nicola et al.
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NASA Astrophysics Data System

Seven new triply eclipsing triple star systems

Astronomy and Astrophysics
2024-06 | Journal article
BIBCODE:

2024A&A...686A..27R

Contributors: Rappaport, S. A.; Borkovits, T.; Mitnyan, T.; Gagliano, R.; Eisner, N.; Jacobs, T.; Tokovinin, A.; Powell, B.; Kostov, V.; Omohundro, M. et al.
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NASA Astrophysics Data System

Confirming the Warm and Dense Sub-Saturn TIC 139270665 b with the Automated Planet Finder and Unistellar Citizen Science Network

The Astronomical Journal
2024-04 | Journal article
Contributors: Peluso, Daniel O'Conner; Dalba, Paul A.; Wright, Duncan; Esposito, Thomas M.; Sgro, Lauren A.; Weaver, Ian C.; Marchis, Franck; Dragomir, Diana; Villanueva, Steven; Fulton, Benjamin et al.
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NASA Astrophysics Data System

Separated Twins or Just Siblings? A Multiplanet System around an M Dwarf Including a Cool Sub-Neptune

The Astrophysical Journal
2023-12 | Journal article
Contributors: Harris, Mallory; Dragomir, Diana; Mireles, Ismael; Collins, Karen A.; Ulmer-Moll, Solène; Howell, Steve B.; Stassun, Keivan G.; Zhou, George; Ziegler, Carl; Bouchy, François et al.
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NASA Astrophysics Data System

101 eclipsing quadruple star candidates discovered in TESS full frame images

Monthly Notices of the Royal Astronomical Society
2023-11-09 | Journal article
Contributors: Veselin B Kostov; Brian P Powell; Saul A Rappaport; Tamás Borkovits; Robert Gagliano; Thomas L Jacobsy; Rahul Jayaraman; Martti H Kristiansen; Daryll M LaCourse; Tibor Mitnyan et al.
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Crossref

BU Canis Minoris - the most compact known flat doubly eclipsing quadruple system

Monthly Notices of the Royal Astronomical Society
2023-09 | Journal article
Contributors: Pribulla, Theodor; Borkovits, Tamás; Jayaraman, Rahul; Rappaport, Saul; Mitnyan, Tibor; Zasche, Petr; Komžík, Richard; Pál, András; Uhlař, Robert; Mašek, Martin et al.
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NASA Astrophysics Data System

Refined parameters of the HD 22946 planetary system and the true orbital period of planet d★

Astronomy and Astrophysics
2023-06 | Journal article
BIBCODE:

2023A&A...674A..44G

Contributors: Garai, Z.; Osborn, H. P.; Gandolfi, D.; Brandeker, A.; Sousa, S. G.; Lendl, M.; Bekkelien, A.; Broeg, C.; Cameron, A. Collier; Egger, J. A. et al.
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NASA Astrophysics Data System

TIC 219006972: a compact, coplanar quadruple star system consisting of two eclipsing binaries with an outer period of 168 d

Monthly Notices of the Royal Astronomical Society
2023-06 | Journal article
Contributors: Kostov, Veselin B.; Borkovits, Tamás; Rappaport, Saul A.; Powell, Brian P.; Pál, András; Jacobs, Thomas L.; Gagliano, Robert; Kristiansen, Martti H.; LaCourse, Daryll M.; Moe, Maxwell et al.
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NASA Astrophysics Data System

A study of nine compact triply eclipsing triples

Monthly Notices of the Royal Astronomical Society
2023-05 | Journal article
Contributors: Rappaport, S. A.; Borkovits, T.; Gagliano, R.; Jacobs, T. L.; Tokovinin, A.; Mitnyan, T.; Komžík, R.; Kostov, V. B.; Powell, B. P.; Torres, G. et al.
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NASA Astrophysics Data System

Validation of TOI-1221 b: A Warm Sub-Neptune Exhibiting Transit Timing Variations around a Sun-like Star

The Astronomical Journal
2023-05 | Journal article
Contributors: Mann, Christopher; Lafreniére, David; Dragomir, Diana; Quinn, Samuel N.; Tan, Thiam-Guan; Collins, Karen A.; Howell, Steve B.; Ziegler, Carl; Mann, Andrew W.; Stassun, Keivan G. et al.
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NASA Astrophysics Data System

V994 Herculis: a unique triply eclipsing sextuple star system

Monthly Notices of the Royal Astronomical Society
2023-04 | Journal article
Contributors: Zasche, P.; Borkovits, T.; Jayaraman, R.; Rappaport, S. A.; Brož, M.; Vokrouhlický, D.; Bíró, I. B.; Hegedüs, T.; Kiss, Z. T.; Uhlař, R. et al.
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NASA Astrophysics Data System

VizieR Online Data Catalog: TESS, CHEOPS and ESPRESSO data of HD 22946 (Garai+, 2023)

VizieR Online Data Catalog
2023-04 | Dataset
Contributors: Garai, Z.; Osborn, H. P.; Gandolfi, D.; Brandeker, A.; Sousa, S. G.; Lendl, M.; Bekkelien, A.; Broeg, C.; Collier Cameron, A.; Egger, J. A. et al.
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NASA Astrophysics Data System

A Second Earth-sized Planet in the Habitable Zone of the M Dwarf, TOI-700

The Astrophysical Journal
2023-02 | Journal article
Contributors: Gilbert, Emily A.; Vanderburg, Andrew; Rodriguez, Joseph E.; Hord, Benjamin J.; Clement, Matthew S.; Barclay, Thomas; Quintana, Elisa V.; Schlieder, Joshua E.; Kane, Stephen R.; Jenkins, Jon M. et al.
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NASA Astrophysics Data System

New compact hierarchical triple system candidates identified using Gaia DR3

Astronomy & Astrophysics
2023-02 | Journal article
Contributors: D. R. Czavalinga; T. Mitnyan; S. A. Rappaport; T. Borkovits; R. Gagliano; M. Omohundro; M. H. K. Kristiansen; A. Pál
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Crossref

TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain

The Astronomical Journal
2023-02 | Journal article
Contributors: Dai, Fei; Masuda, Kento; Beard, Corey; Robertson, Paul; Goldberg, Max; Batygin, Konstantin; Bouma, Luke; Lissauer, Jack J.; Knudstrup, Emil; Albrecht, Simon et al.
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NASA Astrophysics Data System

A Population of Dipper Stars from the Transiting Exoplanet Survey Satellite Mission

The Astrophysical Journal Supplement Series
2022-11 | Journal article
Contributors: Capistrant, Benjamin K.; Soares-Furtado, Melinda; Vanderburg, Andrew; Kounkel, Marina; Rappaport, Saul A.; Omohundro, Mark; Powell, Brian P.; Gagliano, Robert; Jacobs, Thomas; Kostov, Veselin B. et al.
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NASA Astrophysics Data System

VizieR Online Data Catalog: Dipper stars from TESS & Gaia (Capistrant+, 2022)

VizieR Online Data Catalog
2022-11 | Dataset
Contributors: Capistrant, B. K.; Soares-Furtado, M.; Vanderburg, A.; Kounkel, M.; Rappaport, S. A.; Omohundro, M.; Powell, B. P.; Gagliano, R.; Jacobs, T.; Kostov, V. B. et al.
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NASA Astrophysics Data System

VizieR Online Data Catalog: New triple system candidates using Gaia DR3 (Czavalinga+, 2023)

VizieR Online Data Catalog
2022-11 | Dataset
Contributors: Czavalinga, D. R.; Mitnyan, T.; Rappaport, S. A.; Borkovits, T.; Gagliano, R.; Omohundro, M.; Kristiansen, M. H. K.; Pal, A.
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NASA Astrophysics Data System

TIC 114936199: A Quadruple Star System with a 12 Day Outer-orbit Eclipse

The Astrophysical Journal
2022-10 | Journal article
Contributors: Powell, Brian P.; Rappaport, Saul A.; Borkovits, Tamás; Kostov, Veselin B.; Torres, Guillermo; Jayaraman, Rahul; Latham, David W.; Kučáková, Hana; Garai, Zoltán; Pribulla, Theodor et al.
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NASA Astrophysics Data System

VizieR Online Data Catalog: TESS Eclipsing Binary stars. I. Sectors 1-26 (Prsa+, 2022)

VizieR Online Data Catalog
2022-08 | Dataset
Contributors: Prsa, A.; Kochoska, A.; Conroy, K. E.; Eisner, N.; Hey, D. R.; Ijspeert, L.; Kruse, E.; Fleming, S. W.; Johnston, C.; Kristiansen, M. H. et al.
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NASA Astrophysics Data System

Six new compact triply eclipsing triples found with TESS

Monthly Notices of the Royal Astronomical Society
2022-07 | Journal article
Contributors: Rappaport, S. A.; Borkovits, T.; Gagliano, R.; Jacobs, T. L.; Kostov, V. B.; Powell, B. P.; Terentev, I.; Omohundro, M.; Torres, G.; Vanderburg, A. et al.
Source: check_circle
NASA Astrophysics Data System

VizieR Online Data Catalog: Eclipsing quadruple star candidates from TESS (Kostov+, 2022)

VizieR Online Data Catalog
2022-07 | Dataset
Contributors: Kostov, V. B.; Powell, B. P.; Rappaport, S. A.; Borkovits, T.; Gagliano, R.; Jacobs, T. L.; Kristiansen, M. H.; Lacourse, D. M.; Omohundro, M.; Orosz, J. et al.
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NASA Astrophysics Data System

The Visual Survey Group: A Decade of Hunting Exoplanets and Unusual Stellar Events with Space-based Telescopes

Publications of the Astronomical Society of the Pacific
2022-07-01 | Journal article
Contributors: Martti H. K. Kristiansen; Saul A. Rappaport; Andrew M. Vanderburg; Thomas L. Jacobs; Hans Martin Schwengeler; Robert Gagliano; Ivan A. Terentev; Daryll M. LaCourse; Mark R. Omohundro; Allan R. Schmitt et al.
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Crossref

A Second Planet Transiting LTT 1445A and a Determination of the Masses of Both Worlds

The Astronomical Journal
2022-04 | Journal article
Contributors: Winters, Jennifer G.; Cloutier, Ryan; Medina, Amber A.; Irwin, Jonathan M.; Charbonneau, David; Astudillo-Defru, Nicola; Bonfils, Xavier; Howard, Andrew W.; Isaacson, Howard; Bean, Jacob L. et al.
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NASA Astrophysics Data System

Complex Modulation of Rapidly Rotating Young M Dwarfs: Adding Pieces to the Puzzle

The Astronomical Journal
2022-04 | Journal article
Contributors: Günther, Maximilian N.; Berardo, David A.; Ducrot, Elsa; Murray, Catriona A.; Stassun, Keivan G.; Olah, Katalin; Bouma, L. G.; Rappaport, Saul; Winn, Joshua N.; Feinstein, Adina D. et al.
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NASA Astrophysics Data System

VizieR Online Data Catalog: Photometry and radial velocity of LTT 1445A (Winters+, 2022)

VizieR Online Data Catalog
2022-04 | Dataset
Contributors: Winters, J. G.; Cloutier, R.; Medina, A. A.; Irwin, J. M.; Charbonneau, D.; Astudillo-Defru, N.; Bonfils, X.; Howard, A. W.; Isaacson, H.; Bean, J. L. et al.
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NASA Astrophysics Data System

VizieR Online Data Catalog: The TESS-Keck Survey. VIII. TOI-2180 radial velocity (Dalba+, 2022)

VizieR Online Data Catalog
2022-04 | Dataset
Contributors: Dalba, P. A.; Kane, S. R.; Dragomir, D.; Villanueva, S.; Collins, K. A.; Jacobs, T. L.; Lacourse, D. M.; Gagliano, R.; Kristiansen, M. H.; Omohundro, M. et al.
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NASA Astrophysics Data System

The Refined Transit Ephemeris of TOI-2180 b

Research Notes of the AAS
2022-04-12 | Journal article
Contributors: Paul A. Dalba; Thomas Lee Jacobs; Mark Omohundro; Robert Gagliano; Jay Jursich; Martti H. Kristiansen; Daryll M. LaCourse; Hans M. Schwengeler; Ivan A. Terentev
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Crossref

Ninety-seven Eclipsing Quadruple Star Candidates Discovered in TESS Full-frame Images

The Astrophysical Journal Supplement Series
2022-04-01 | Journal article
Contributors: Veselin B. Kostov; Brian P. Powell; Saul A. Rappaport; Tamás Borkovits; Robert Gagliano; Thomas L. Jacobs; Martti H. Kristiansen; Daryll M. LaCourse; Mark Omohundro; Jerome Orosz et al.
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Crossref

A 2+1 + 1 quadruple star system containing the most eccentric, low-mass, short-period, eclipsing binary known

Monthly Notices of the Royal Astronomical Society
2022-02 | Journal article
Contributors: Han, E.; Rappaport, S. A.; Vanderburg, A.; Tofflemire, B. M.; Borkovits, T.; Schwengeler, H. M.; Zasche, P.; Krolikowski, D. M.; Muirhead, P. S.; Kristiansen, M. H. et al.
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NASA Astrophysics Data System

Triply eclipsing triple stars in the northern TESS fields: TICs 193993801, 388459317, and 52041148

Monthly Notices of the Royal Astronomical Society
2022-02 | Journal article
Contributors: Borkovits, T.; Mitnyan, T.; Rappaport, S. A.; Pribulla, T.; Powell, B. P.; Kostov, V. B.; Bíró, I. B.; Csányi, I.; Garai, Z.; Gary, B. L. et al.
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NASA Astrophysics Data System

The TESS-Keck Survey. VIII. Confirmation of a Transiting Giant Planet on an Eccentric 261 Day Orbit with the Automated Planet Finder Telescope*

The Astronomical Journal
2022-02-01 | Journal article
Contributors: Paul A. Dalba; Stephen R. Kane; Diana Dragomir; Steven Villanueva, Jr.; Karen A. Collins; Thomas Lee Jacobs; Daryll M. LaCourse; Robert Gagliano; Martti H. Kristiansen; Mark Omohundro et al.
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Crossref

AltaiPony: Flare finder for Kepler, K2, and TESS light curves

Astrophysics Source Code Library
2022-01 | Research protocol or technique
Contributors: Ilin, Ekaterina; Schmidt, Sarah J.; Poppenhäger, Katja; Davenport, James R. A.; Kristiansen, Martti H.; Omohundro, Mark
Source: check_circle
NASA Astrophysics Data System

TESS Eclipsing Binary Stars. I. Short-cadence Observations of 4584 Eclipsing Binaries in Sectors 1–26

The Astrophysical Journal Supplement Series
2022-01-01 | Journal article
Contributors: Andrej Prša; Angela Kochoska; Kyle E. Conroy; Nora Eisner; Daniel R. Hey; Luc IJspeert; Ethan Kruse; Scott W. Fleming; Cole Johnston; Martti H. Kristiansen et al.
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Crossref

Mysterious Dust-emitting Object Orbiting TIC 400799224

The Astronomical Journal
2021-12 | Journal article
Contributors: Powell, Brian P.; Kostov, Veselin B.; Rappaport, Saul A.; Tokovinin, Andrei; Shporer, Avi; Collins, Karen A.; Corbett, Hank; Borkovits, Tamás; Gary, Bruce L.; Chiang, Eugene et al.
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NASA Astrophysics Data System

BU Canis Minoris: The Tightest-Known Flat Quadruple System

Posters from the TESS Science Conference II (TSC2)
2021-07 | Conference paper
Contributors: Jayaraman, Rahul; Rappaport, Saul; Borkovits, Tamás; Pribulla, Theodor; Komžik, Richard; Mitnyan, Tibor; Zasche, Petr; Tokovinin, Andrei; Rodriguez, Joseph E.; Terentev, Ivan et al.
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NASA Astrophysics Data System

BG Ind: the nearest doubly eclipsing, compact hierarchical quadruple system

Monthly Notices of the Royal Astronomical Society
2021-05 | Journal article
Contributors: Borkovits, T.; Rappaport, S. A.; Maxted, P. F. L.; Terentev, I.; Omohundro, M.; Gagliano, R.; Jacobs, T.; Kristiansen, M. H.; LaCourse, D.; Schwengeler, H. M. et al.
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NASA Astrophysics Data System

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

The Astronomical Journal
2021-05 | Journal article
Contributors: Hardegree-Ullman, Kevin K.; Christiansen, Jessie L.; Ciardi, David R.; Crossfield, Ian J. M.; Dressing, Courtney D.; Livingston, John H.; Volk, Kathryn; Agol, Eric; Barclay, Thomas; Barentsen, Geert et al.
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NASA Astrophysics Data System

Six transiting planets and a chain of Laplace resonances in TOI-178

Astronomy and Astrophysics
2021-05 | Journal article
BIBCODE:

2021A&A...649A..26L

Contributors: Leleu, A.; Alibert, Y.; Hara, N. C.; Hooton, M. J.; Wilson, T. G.; Robutel, P.; Delisle, J. -B.; Laskar, J.; Hoyer, S.; Lovis, C. et al.
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NASA Astrophysics Data System

VizieR Online Data Catalog: TOI-178 six transiting planets (Leleu+, 2021)

VizieR Online Data Catalog
2021-05 | Dataset
Contributors: Leleu, A.; Alibert, Y.; Hara, N. C.; Hooton, M. J.; Wilson, T. G.; Robutel, P.; Delisle, J. -B.; Laskar, J.; Hoyer, S.; Lovis, C. et al.
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NASA Astrophysics Data System

TIC 168789840: A Sextuply Eclipsing Sextuple Star System

The Astronomical Journal
2021-04 | Journal article
Contributors: Powell, Brian P.; Kostov, Veselin B.; Rappaport, Saul A.; Borkovits, Tamás; Zasche, Petr; Tokovinin, Andrei; Kruse, Ethan; Latham, David W.; Montet, Benjamin T.; Jensen, Eric L. N. et al.
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NASA Astrophysics Data System

Confirming the Host Star of a Second Planet in the LTT 1445ABC System

HST Proposal
2021-03 | Other
Contributors: Winters, Jennifer; Bean, Jacob L.; Bonfils, Xavier; Charbonneau, David; Cloutier, Ryan; Collins, Karen Alicia; Defru, Nicola Astudillo; Howard, Andrew W.; Irwin, Jonathan; Kristiansen, Martti Holst et al.
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NASA Astrophysics Data System

TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-like Star HD 108236

The Astronomical Journal
2021-02 | Journal article
Contributors: Daylan, Tansu; Pinglé, Kartik; Wright, Jasmine; Günther, Maximilian N.; Stassun, Keivan G.; Kane, Stephen R.; Vanderburg, Andrew; Jontof-Hutter, Daniel; Rodriguez, Joseph E.; Shporer, Avi et al.
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NASA Astrophysics Data System

Flares in open clusters with K2

Astronomy & Astrophysics
2021-01 | Journal article
Contributors: Ekaterina Ilin; Sarah J. Schmidt; Katja Poppenhäger; James R. A. Davenport; Martti H. Kristiansen; Mark Omohundro
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Crossref

TESS Hunt for Young and Maturing Exoplanets (THYME). III. A Two-planet System in the 400 Myr Ursa Major Group

The Astronomical Journal
2020-10 | Journal article
Contributors: Mann, Andrew W.; Johnson, Marshall C.; Vanderburg, Andrew; Kraus, Adam L.; Rizzuto, Aaron C.; Wood, Mackenna L.; Bush, Jonathan L.; Rockcliffe, Keighley; Newton, Elisabeth R.; Latham, David W. et al.
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NASA Astrophysics Data System

VizieR Online Data Catalog: Flares in 5 open clusters (Ilin+, 2021)

VizieR Online Data Catalog
2020-10 | Dataset
Contributors: Ilin, E.; Schmidt, S. J.; Poppenhager, K.; Davenport, J. R. A.; Kristiansen, M. H.; Omohundro, M.
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NASA Astrophysics Data System

VizieR Online Data Catalog: HARPS, HIRES and AAT Radial Velocities of HD 136352 (Kane+, 2020)

VizieR Online Data Catalog
2020-10 | Dataset
Contributors: Kane, S. R.; Yalcinkaya, S.; Osborn, H. P.; Dalba, P. A.; Nielsen, L. D.; Vanderburg, A.; Mocnik, T.; Hinkel, N. R.; Ostberg, C.; Esmer, E. M. et al.
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NASA Astrophysics Data System

The TESS-Keck Survey. III. A Stellar Obliquity Measurement of TOI-1726 c

The Astronomical Journal
2020-10-01 | Journal article
Contributors: Fei Dai; Arpita Roy; Benjamin Fulton; Paul Robertson; Lea Hirsch; Howard Isaacson; Simon Albrecht; Andrew W. Mann; Martti H. Kristiansen; Natalie M. Batalha et al.
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Crossref

Transits of Known Planets Orbiting a Naked-eye Star

The Astronomical Journal
2020-09 | Journal article
Contributors: Kane, Stephen R.; Yalçınkaya, Selçuk; Osborn, Hugh P.; Dalba, Paul A.; Nielsen, Louise D.; Vanderburg, Andrew; Močnik, Teo; Hinkel, Natalie R.; Ostberg, Colby; Esmer, Ekrem Murat et al.
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NASA Astrophysics Data System
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