Cluster Difference Imaging Photometric Survey. II. TOI 837: A Young Validated Planet in IC 2602

  title={Cluster Difference Imaging Photometric Survey. II. TOI 837: A Young Validated Planet in IC 2602},
  author={Luke G. Bouma and Joel D. Hartman and Rafael Brahm and Phil Evans and Karen A. Collins and G. Zhou and Paula Sarkis and Samuel N. Quinn and Jerome P. de Leon and John H. Livingston and Christoph Bergmann and Keivan G. Stassun and Waqas Bhatti and Joshua N. Winn and G{\'a}sp{\'a}r {\'A}. Bakos and Lyu Abe and Nicolas Crouzet and Georgina Dransfield and Tristan Guillot and Wenceslas Marie-Sainte and Djamel M'ekarnia and Amaury H. M. J. Triaud and Christopher G. Tinney and Th. Henning and N{\'e}stor Espinoza and Andr'es Jord'an and Mauro Barbieri and Sangeetha Nandakumar and Trifon Trifonov and Jos{\'e} I Vines and M. Vu{\vc}kovi{\'c} and Carl A. Ziegler and Nicholas M. Law and Andrew W. Mann and George R. Ricker and Roland K. Vanderspek and Sara Seager and Jon M. Jenkins and Christopher J. Burke and Diana Dragomir and Alan M. Levine and Elisa V. Quintana and J. E. Rodriguez and J. C. Smith and Bill Wohler},
  journal={The Astronomical Journal},
We report the discovery of TOI 837b and its validation as a transiting planet. We characterize the system using data from the NASA Transiting Exoplanet Survey Satellite mission, the ESA Gaia mission, ground-based photometry from El Sauce and ASTEP400, and spectroscopy from CHIRON, FEROS, and Veloce. We find that TOI 837 is a T = 9.9 mag G0/F9 dwarf in the southern open cluster IC 2602. The star and planet are therefore million years old. Combining the transit photometry with a prior on the… 
Stellar Companions to TESS Objects of Interest: A Test of Planet–Companion Alignment
We present a catalog of stellar companions to host stars of Transiting Exoplanet Survey Satellite Objects of Interest (TOIs) identified from a marginalized likelihood ratio test that incorporates
Evidence for Centrifugal Breakout around the Young M Dwarf TIC 234284556
Magnetospheric clouds have been proposed as explanations for depth-varying dips in the phased light curves of young, magnetically active stars such as σ Ori E and RIK-210. However, the stellar theory
Observation Scheduling and Automatic Data Reduction for the Antarctic telescope, ASTEP+
The possibility to observe transiting exoplanets from Dome C in Antarctica provides immense benefits: stable weather conditions, limited atmospheric turbulence, and a night that lasts almost three
pterodactyls: A Tool to Uniformly Search and Vet for Young Transiting Planets in TESS Primary Mission Photometry
Kepler’s short-period exoplanet population has revealed evolutionary features such as the Radius Valley and the Hot Neptune desert that are likely sculpted by atmospheric loss over time. These
The California-Kepler Survey. X. The Radius Gap as a Function of Stellar Mass, Metallicity, and Age
In 2017, the California-Kepler Survey (CKS) published its first data release (DR1) of high-resolution optical spectra of 1305 planet hosts. Refined CKS planet radii revealed that small planets are
A 38 Million Year Old Neptune-sized Planet in the Kepler Field
Kepler 1627A is a G8V star previously known to host a 3.8 R ⊕ planet on a 7.2 day orbit. The star was observed by the Kepler space telescope because it is nearby (d = 329 pc) and it resembles the
V1298 Tau with TESS: Updated Ephemerides, Radii, and Period Constraints from a Second Transit of V1298 Tau e
V1298 Tau is a young (20–30 Myr) solar-mass K star hosting four transiting exoplanets with sizes between 0.5 and 0.9 R J. Given the system’s youth, it provides a unique opportunity to understand the
TESS Hunt for Young and Maturing Exoplanets (THYME). VI. An 11 Myr Giant Planet Transiting a Very-low-mass Star in Lower Centaurus Crux
Mature super-Earths and sub-Neptunes are predicted to be ≃ Jovian radius when younger than 10 Myr. Thus, we expect to find 5–15 R ⊕ planets around young stars even if their older counterparts harbor
A Search for Planetary Metastable Helium Absorption in the V1298 Tau System
Early in their lives, planets endure extreme amounts of ionizing radiation from their host stars. For planets with primordial hydrogen and helium-rich envelopes, this can lead to substantial mass
Rotation and Lithium Confirmation of a 500 pc Halo for the Open Cluster NGC 2516
Recent analyses of the Gaia data have identified diffuse stellar populations surrounding nearby open clusters. It is important to verify that these “halos,” “tails,” and “strings” are of similar ages


TESS Hunt for Young and Maturing Exoplanets (THYME). II. A 17 Myr Old Transiting Hot Jupiter in the Sco-Cen Association
We present the discovery of a transiting hot Jupiter orbiting HIP 67522 (Teff ∼ 5650 K; M* ∼ 1.2M⊙) in the 10–20 Myr old Sco-Cen OB association. We identified the transits in the TESS data using our
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 the high-dispersion near-infrared
The Youngest Planet to Have a Spin-Orbit Alignment Measurement AU Mic b
We report measurements of the sky-projected spin–orbit angle for AU Mic b, a Neptune-size planet orbiting a very young (∼20 Myr) nearby pre-main-sequence M-dwarf star, which also hosts a bright,
The Habitable Zone Planet Finder Reveals a High Mass and Low Obliquity for the Young Neptune K2-25b
Using radial velocity data from the Habitable Zone Planet Finder, we have measured the mass of the Neptune-sized planet K2-25b, as well as the obliquity of its M4.5 dwarf host star in the 600–800 Myr
Transmission spectroscopy and Rossiter-McLaughlin measurements of the young Neptune orbiting AU Mic
AU Mic b is a Neptune-sized planet on an 8.47-day orbit around the nearest pre-main sequence (~20 Myr) star to the Sun, the bright (V = 8.81) M dwarf AU Mic. The planet was preliminary detected in
TESS Hunt for Young and Maturing Exoplanets (THYME). III. A Two-planet System in the 400 Myr Ursa Major Group
Exoplanets can evolve significantly between birth and maturity, as their atmospheres, orbits, and structures are shaped by their environment. Young planets (<1 Gyr) offer an opportunity to probe the
Expected Yields of Planet discoveries from the TESS primary and extended missions
We present a prediction of the transiting exoplanet yield of the TESS primary mission, in order to guide follow-up observations and science projects utilizing TESS discoveries. Our new simulations
The Gaia-ESO Survey: open clusters in Gaia-DR1
The methodologies described, taking advantage of Gaia-DR1 and the Gaia-ESO Survey data, enable the comparison of observed open star cluster sequences with stellar evolutionary models to demonstrate the potential of combining Gaia and ground-based spectroscopic datasets.
isochrones: Stellar model grid package