TOI-3664 b, TOI-4034 b, and TOI-6564 b are three newly characterized hot Jupiters around terminal-age main-sequence stars, with sub-Jupiter masses and inflated radii.
Ground-based and Airborne Instrumentation for Astronomy V , year = 2014, editor =
10 Pith papers cite this work, alongside 234 external citations. Polarity classification is still indexing.
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Introduces a reflection spectroscopy metric and uses KELT-9 injection-recovery tests to demonstrate that rotational line broadening from rapid stellar rotation and large misalignments must be included when assessing detectability of exoplanet reflected spectra.
TOI-4311 hosts a 0.99-day super-Earth (1.38 R_earth, 4.5 M_earth) and 15-day sub-Neptune (2.47 R_earth), plus a candidate 38-day planet, with the dense inner planet potentially challenging formation theories given the host's galactic population.
Long-term spectroscopy of GJ 436 shows activity modulated by the planet's orbit, yielding a 6-110 G estimate for the warm Neptune's magnetic field via a new geometrical model.
GJ 729 exhibits a weak, evolving large-scale magnetic field (50-145 G) and a persistent ~7 d radial velocity signal that could be a ~1.5-2 Earth-mass planet or residual stellar activity.
Resolves six speculative companions into one giant planet, one eccentric brown dwarf, two low-mass stars, and two stars with no detectable companions.
Joint radial-velocity analysis revises GJ 3378b's period to 21.45 days and minimum mass to 2.3 Earth masses, placing the habitable-zone planet near the cosmic shoreline.
A multi-author review synthesizes cool-star magnetic activity diagnostics, solar analogues, rotation-activity relations, and surface-mapping methods for exoplanet science.
The CARMENES-PLUS cooling system upgrade achieved 0.67 m/s intrinsic RV precision in the NIR channel, with nightly zero-point scatter reduced from 6.1 to 3.9 m/s and median stellar scatter from 8.8 to 6.7 m/s for slow rotators.
The paper reports the in-house design, development, and 2022 installation of the CAMPAS Cassegrain module containing focal reducer, atmospheric dispersion corrector, fiber mounts, and calibration unit for the PARAS-2 spectrograph.
citing papers explorer
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TOI-3664 b, TOI-4034 b & TOI-6564 b: Three new hot Jupiters around stars approaching the terminal age main sequence
TOI-3664 b, TOI-4034 b, and TOI-6564 b are three newly characterized hot Jupiters around terminal-age main-sequence stars, with sub-Jupiter masses and inflated radii.
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Spinning out of focus: The challenge of rotational line broadening in exoplanet reflection spectroscopy
Introduces a reflection spectroscopy metric and uses KELT-9 injection-recovery tests to demonstrate that rotational line broadening from rapid stellar rotation and large misalignments must be included when assessing detectability of exoplanet reflected spectra.
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An Ultra-Short Period Super-Earth and a Sub-Neptune Orbiting the K dwarf TOI-4311
TOI-4311 hosts a 0.99-day super-Earth (1.38 R_earth, 4.5 M_earth) and 15-day sub-Neptune (2.47 R_earth), plus a candidate 38-day planet, with the dense inner planet potentially challenging formation theories given the host's galactic population.
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Planet-induced Periodic Modulation of Stellar Activity in GJ~436: Insights into a Warm Neptune's Magnetic Field
Long-term spectroscopy of GJ 436 shows activity modulated by the planet's orbit, yielding a 6-110 G estimate for the warm Neptune's magnetic field via a new geometrical model.
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RedDots: Magnetic field of the nearby active M dwarf GJ 729, and a search for companions
GJ 729 exhibits a weak, evolving large-scale magnetic field (50-145 G) and a persistent ~7 d radial velocity signal that could be a ~1.5-2 Earth-mass planet or residual stellar activity.
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The Pan-Pacific Planet Search -- IX. A menagerie of companions orbiting evolved stars
Resolves six speculative companions into one giant planet, one eccentric brown dwarf, two low-mass stars, and two stars with no detectable companions.
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A Revised Mass and Period for the Habitable Zone super-Earth GJ 3378b: A Planet Straddling the Cosmic Shoreline
Joint radial-velocity analysis revises GJ 3378b's period to 21.45 days and minimum mass to 2.3 Earth masses, placing the habitable-zone planet near the cosmic shoreline.
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Magnetic activity in cool stars: manifestations and relevance to exoplanets
A multi-author review synthesizes cool-star magnetic activity diagnostics, solar analogues, rotation-activity relations, and surface-mapping methods for exoplanet science.
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Improving radial velocity precision with CARMENES-PLUS:An upgrade of the near-infrared spectrograph cooling system
The CARMENES-PLUS cooling system upgrade achieved 0.67 m/s intrinsic RV precision in the NIR channel, with nightly zero-point scatter reduced from 6.1 to 3.9 m/s and median stellar scatter from 8.8 to 6.7 m/s for slow rotators.
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Design and Development of Cassegrain Module for PARAS-2 Spectrograph (CAMPAS)
The paper reports the in-house design, development, and 2022 installation of the CAMPAS Cassegrain module containing focal reducer, atmospheric dispersion corrector, fiber mounts, and calibration unit for the PARAS-2 spectrograph.