activity
20122024
most citedThe ongoing pursuit of R Coronae Borealis stars: ASAS-3 survey strikes again

47 citations · 77 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.SR2024

A Comprehensive Study of the Dust Declines in R Coronae Borealis Stars

Courtney L. Crawford, Jamie Soon, Geoffrey C. Clayton +4

The R Coronae Borealis (RCB) variables are rare, hydrogen-deficient, carbon-rich supergiants known for large, erratic declines in brightness due to dust formation. Recently, the nu…

astro-ph.SR2024★ 3 cited

Oxygen Isotope Ratios in Hydrogen-Deficient Carbon Stars: A Correlation with Effective Temperature and Implications for White Dwarf Merger Outcomes

Advait Mehla, Mansi M. Kasliwal, Viraj Karambelkar +5

Hydrogen-deficient Carbon (HdC) stars are a class of supergiants with anomalous chemical compositions, suggesting that they are remnants of CO-He white dwarf (WD) mergers. This cla…

astro-ph.SR2024

Modelling Hydrogen-deficient Carbon stars in MESA -- The effects of total mass and mass ratio

Courtney L. Crawford, Nikita Nikultsev, Geoffrey C. Clayton +3

Hydrogen-deficient Carbon (HdC) stars are rare, low-mass, chemically peculiar, supergiant variables believed to be formed by a double white dwarf (DWD) merger, specifically of a Ca…

astro-ph.SR2024★ 5 cited

Hydrodynamic simulations of WD-WD mergers and the origin of RCB stars

Sagiv Shiber, Orsola De Marco, Patrick M. Motl +10

We study the properties of double white dwarf (DWD) mergers by performing hydrodynamic simulations using the new and improved adaptive mesh refinement code Octo-Tiger. We follow th…

astro-ph.SR2021★ 14 cited

R Coronae Borealis and dustless Hydrogen-deficient Carbon stars have different oxygen isotope ratios

Viraj Karambelkar, Mansi Kasliwal, Patrick Tisserand +5

R Coronae Borealis (RCB) and dustless Hydrogen-deficient Carbon (dLHdC) stars are believed to be remnants of low mass white dwarf mergers. These supergiant stars have peculiar hydr…

astro-ph.SR2021★ 7 cited

Peculiar Hydrogen-deficient Carbon Stars: Strontium-Rich Stars and the s-Process

Courtney L. Crawford, Patrick Tisserand, Geoffrey C. Clayton +1

Context: R Coronae Borealis (RCB) variables and their non-variable counterparts, the dustless Hydrogen-Deficient Carbon (dLHdC) stars have been known to exhibit enhanced s-processe…

astro-ph.SR2018★ 1 cited

Tracking down R Coronae Borealis stars using the WISE All-Sky survey

P. Tisserand, G. C. Clayton, D. L. Welch

R Coronae Borealis stars (RCBs) are the best candidates to be the products of white dwarf mergers in the intermediate mass range ( M). After a merger, a…

astro-ph.SR2012★ 47 cited

The ongoing pursuit of R Coronae Borealis stars: ASAS-3 survey strikes again

P. Tisserand, G. C. Clayton, D. L. Welch +3

R Coronae Borealis stars (RCBs) are rare, hydrogen-deficient, carbon-rich supergiant variable stars that are likely the evolved merger products of pairs of CO and He white dwarfs.…