A second candidate magnetic helium core white dwarf and 3 other variable white dwarfs in the globular cluster NGC 6397

Authors: Marcano, Manuel Pichardo, Sandoval, Liliana E. Rivera, Maccarone, Thomas J., Rohrmann, Rene D., Althaus, Leandro G., Heinke, Craig O., Belloni, Diogo, Bahramian, Arash

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics - High Energy Astrophysical Phenomena

Access URL: http://arxiv.org/abs/2412.12375

Impact of current uncertainties in the 12C+12C nuclear reaction rate on intermediate-mass stars and massive white dwarfs

Authors: De Gerónimo, Francisco C., Bertolami, Marcelo M. Miller, Battich, Tiara, Tang, Xiaodong, Catelan, Márcio, Córsico, Alejandro H., Li, Yunjun, Fang, Xiao, Althaus, Leandro G.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2409.10793

An analysis of spectroscopic, seismological, astrometric, and photometric masses of pulsating white dwarf stars

Authors: Calcaferro, Leila M., Córsico, Alejandro H., Uzundag, Murat, Althaus, Leandro G., Kepler, S. O., Werner, Klaus

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2409.03896

Einstein's equations constrained by homogeneous and isotropic expansion: Initial value problems and applications

Authors: Gomes, Leandro G., Nogueira, Marcelo A. C., Santos, Lucas Ruiz dos

Subject Terms: General Relativity and Quantum Cosmology, Mathematical Physics, 83C05, 83F05, 83C15

Access URL: http://arxiv.org/abs/2408.01644

Spacetimes with homogeneous and isotropic expansion

Authors: Gomes, Leandro G.

Subject Terms: General Relativity and Quantum Cosmology, 83C20

Access URL: http://arxiv.org/abs/2404.07757

Pulsating hydrogen-deficient white dwarfs and pre-white dwarfs observed with TESS VI. Asteroseismology of the GW Vir-type central star of the Planetary Nebula NGC 246

Authors: Calcaferro, Leila M., Sowicka, Paulina, Uzundag, Murat, Córsico, Alejandro H., Kepler, S. O., Bell, Keaton J., Althaus, Leandro G., Handler, Gerald, Kawaler, Steven D., Werner, Klaus

Source: A&A 686, A140 (2024)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2402.16642

J0526+5934: a peculiar ultra-short period double white dwarf

Authors: Rebassa-Mansergas, Alberto, Hollands, Mark, Parsons, Steven G., Althaus, Leandro G., Pelisoli, Ingrid, Irawati, Puji, Raddi, Roberto, Camisassa, Maria E., Torres, Santiago

Source: A&A 686, A221 (2024)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - High Energy Astrophysical Phenomena

Access URL: http://arxiv.org/abs/2402.04443

The impact of breathing pulses during core-helium burning on the core chemical structure and pulsations of hydrogen-rich atmosphere white dwarfs

Authors: Córsico, Alejandro H., Althaus, Leandro G.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2402.03490

Interglacial dust, ocean fertilisation and Neoproterozoic earth oxygenation

Authors: Leandro G. DaSilva, Peir K. Pufahl, Noel P. James

Source: The Depositional Record, Vol 11, Iss 2, Pp 654-674 (2025)

Subject Terms: Earth oxygenation, interglacial aeolian dust, Neoproterozoic glaciations, ocean fertilisation, primary productivity, Geology, QE1-996.5

File Description: electronic resource

Relation: https://doaj.org/toc/2055-4877

Access URL: https://doaj.org/article/38439ff248b743788bb61709b1a81215

Breaking the Cosmological Principle into pieces: a prelude to the intrinsically homogeneous and isotropic spacetimes

Authors: Gomes, Leandro G.

Subject Terms: General Relativity and Quantum Cosmology, 83F05, 83C99

Access URL: http://arxiv.org/abs/2401.01992

Asteroseismological analysis of the polluted ZZ Ceti star G29-38 with TESS

Authors: Uzundag, Murat, De Gerónimo, Francisco C., Córsico, Alejandro H., Silvotti, Roberto, Bradley, Paul A., Montgomery, Michael H., Catelan, Márcio, Toloza, Odette, Bell, Keaton J., Kepler, S. O., Althaus, Leandro G., Kleinman, Scot J., Kilic, Mukremin, Mullally, Susan E., Gänsicke, Boris T., Bąkowska, Karolina, Barber, Sam, Nitta, Atsuko

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2309.04809

General relativistic pulsations of ultra-massive ZZ Ceti stars

Authors: Córsico, Alejandro H., Boston, S. Reece, Althaus, Leandro G., Kilic, Mukremin, Kepler, S. O., Camisassa, María E., Torres, Santiago

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, General Relativity and Quantum Cosmology

Access URL: http://arxiv.org/abs/2307.11834

Carbon-oxygen ultra-massive white dwarfs in general relativity

Authors: Althaus, Leandro G., Córsico, Alejandro H., Camisassa, María E., Torres, Santiago, Gil-Pons, Pilar, Rebassa-Mansergas, Alberto, Raddi, Roberto

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, General Relativity and Quantum Cosmology

Access URL: http://arxiv.org/abs/2306.05251

A hidden population of white dwarfs with atmospheric carbon traces in the Gaia bifurcation

Authors: Camisassa, Maria, Torres, Santiago, Hollands, Mark, Koester, Detlev, Raddi, Roberto, Althaus, Leandro G., Rebassa-Mansergas, Alberto

Source: A&A 674, A213 (2023)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2305.02110

The 'canonical' White Dwarf Cooling Sequence of M5

Authors: Chen, Jianxing, Ferraro, Francesco R., Salaris, Maurizio, Cadelano, Mario, Lanzoni, Barbara, Pallanca, Cristina, Althaus, Leandro G., Cassisi, Santi

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Astrophysics of Galaxies

Access URL: http://arxiv.org/abs/2304.14847

WD J004917.14$-$252556.81, the Most Massive Pulsating White Dwarf

Authors: Kilic, Mukremin, Córsico, Alejandro H., Moss, Adam G., Jewett, Gracyn, De Gerónimo, Francisco C., Althaus, Leandro G.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2304.10330

Exploring the internal rotation of the extremely low-mass He-core white dwarf GD 278 with TESS asteroseismology

Authors: Calcaferro, Leila M., Córsico, Alejandro H., Althaus, Leandro G., Lopez, Isaac D., Hermes, J. J.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2303.15962

A candidate magnetic helium core white dwarf in the globular cluster NGC 6397

Authors: Marcano, Manuel Pichardo, Sandoval, Liliana E. Rivera, Maccarone, Thomas J., Rohrmann, Rene D., Heinke, Craig O., Belloni, Diogo, Althaus, Leandro G., Bahramian, Arash

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - High Energy Astrophysical Phenomena

Access URL: http://arxiv.org/abs/2303.04184

Newtonian pulsations of relativistic ONe-core ultra-massive DA white dwarfs

Authors: Córsico, Alejandro H., Althaus, Leandro G., Camisassa, María E.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, General Relativity and Quantum Cosmology

Access URL: http://arxiv.org/abs/2302.04100

A Variable Admittance Shunt Capacitor Using Series Inverter for Filtering Harmonics of Distribution Systems

Authors: Cirilo Leandro, G., Sano, K., Okada, N.

Source: IEEE Journal of Emerging and Selected Topics in Power Electronics IEEE J. Emerg. Sel. Topics Power Electron. Emerging and Selected Topics in Power Electronics, IEEE Journal of. 10(3):3087-3099 Jun, 2022