Identifying quiescent compact objects in massive Galactic single-lined spectroscopic binaries

L Mahy, H Sana, T Shenar, K Sen, N Langer… - Astronomy & …, 2022 - aanda.org
Context. The quest to detect dormant stellar-mass black holes (BHs) in massive binaries (ie
OB+ BH systems) is challenging; only a few candidates have been claimed to date, all of …

TESS Hunt for Young and Maturing Exoplanets (THYME): a planet in the 45 Myr Tucana–Horologium association

ER Newton, AW Mann, BM Tofflemire… - The Astrophysical …, 2019 - iopscience.iop.org
Young exoplanets are snapshots of the planetary evolution process. Planets that orbit stars
in young associations are particularly important because the age of the planetary system is …

TESS Hunt for Young and Maturing Exoplanets (THYME). VI. An 11 Myr giant planet transiting a very-low-mass star in Lower Centaurus Crux

AW Mann, ML Wood, SP Schmidt… - The Astronomical …, 2022 - iopscience.iop.org
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 …

TESS hunt for young and maturing exoplanets (THYME). II. A 17 Myr old transiting hot Jupiter in the Sco-cen association

AC Rizzuto, ER Newton, AW Mann… - The Astronomical …, 2020 - iopscience.iop.org
We present the discovery of a transiting hot Jupiter orbiting HIP 67522 (T eff∼ 5650 K; M*∼
1.2M⊙) in the 10–20 Myr old Sco-Cen OB association. We identified the transits in the TESS …

Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS∗

G Zhou, CX Huang, GÁ Bakos… - The Astronomical …, 2019 - iopscience.iop.org
Wide-field surveys for transiting planets are well suited to searching diverse stellar
populations, enabling a better understanding of the link between the properties of planets …

Extended Shock Breakout and Early Circumstellar Interaction in SN 2024ggi

M Shrestha, KA Bostroem, DJ Sand… - The Astrophysical …, 2024 - iopscience.iop.org
We present high-cadence photometric and spectroscopic observations of supernova (SN)
2024ggi, a Type II SN with flash spectroscopy features, which exploded in the nearby galaxy …

TESS Hunt for Young and Maturing Exoplanets (THYME). IV. Three Small Planets Orbiting a 120 Myr Old Star in the Pisces–Eridanus Stream

ER Newton, AW Mann, AL Kraus… - The Astronomical …, 2021 - iopscience.iop.org
Young exoplanets can offer insight into the evolution of planetary atmospheres,
compositions, and architectures. We present the discovery of the young planetary system …

Direct evidence for shock-powered optical emission in a nova

E Aydi, KV Sokolovsky, L Chomiuk, E Steinberg… - Nature …, 2020 - nature.com
Classical novae are thermonuclear explosions that occur on the surfaces of white dwarf
stars in interacting binary systems. It has long been thought that the luminosity of classical …

Early spectral evolution of classical novae: consistent evidence for multiple distinct outflows

E Aydi, L Chomiuk, L Izzo, EJ Harvey… - The Astrophysical …, 2020 - iopscience.iop.org
The physical mechanism driving mass ejection during a nova eruption is still poorly
understood. Possibilities include ejection in a single ballistic event, a common-envelope …

Binarity among CEMP-no stars: an indication of multiple formation pathways?

A Arentsen, E Starkenburg, MD Shetrone… - Astronomy & …, 2019 - aanda.org
Carbon-enhanced metal-poor (CEMP) stars comprise a high percentage of stars at the
lowest metallicities. The stars in the CEMP-no subcategory do not show any s-process …