Outputs (7)

Optical spectroscopic and photometric classification of the X-ray transient EP240309a (EP J115415.8−501810) as an intermediate polar (2024)
Journal Article
Potter, S. B., Buckley, D. A. H., Scaringi, S., Monageng, I. M., Egbo, O. D., Charles, P. A., …Hlakola, M. (2024). Optical spectroscopic and photometric classification of the X-ray transient EP240309a (EP J115415.8−501810) as an intermediate polar. Monthly Notices of the Royal Astronomical Society: Letters, 532(1), L21-L26. https://doi.org/10.1093/mnrasl/slae038

We report on optical follow-up observations of an X-ray source initially detected by the Einstein Probe mission. Our investigations categorize the source as an intermediate polar, a class of magnetic cataclysmic variables, exhibiting an orbital perio... Read More about Optical spectroscopic and photometric classification of the X-ray transient EP240309a (EP J115415.8−501810) as an intermediate polar.

Burst-induced spin variations in the accreting magnetic white dwarf PBC J0801.2–4625 (2024)
Journal Article
Irving, Z. A., Altamirano, D., Scaringi, S., Veresvarska, M., Knigge, C., Castro Segura, N., …Iłkiewicz, K. (2024). Burst-induced spin variations in the accreting magnetic white dwarf PBC J0801.2–4625. Monthly Notices of the Royal Astronomical Society, 530(4), 3974-3985. https://doi.org/10.1093/mnras/stae1103

PBC J0801.2–4625 is an intermediate polar with a primary spin frequency of 66.08 d−1 and an unknown orbital period. The long-term All Sky Automated Survey for Supernovae (ASAS-SN) light curve of this system reveals four bursts, all of which have simi... Read More about Burst-induced spin variations in the accreting magnetic white dwarf PBC J0801.2–4625.

TESS Photometry of AM Her and AR UMa: Binary Parameters, Cyclotron Emission Modeling, and Mass Transfer Duty Cycles (2024)
Journal Article
Mason, P. A., Hakala, P., Wu, K., Barrett, P. E., Iłkiewicz, K., Littlefield, C., …Scaringi, S. (2024). TESS Photometry of AM Her and AR UMa: Binary Parameters, Cyclotron Emission Modeling, and Mass Transfer Duty Cycles. Astrophysical Journal, 965(1), Article 96. https://doi.org/10.3847/1538-4357/ad27d7

Transiting Exoplanet Survey Satellite (TESS) photometry of the polars AM Herculis (AM Her) and AR Ursae Majoris (AR UMa) is presented, along with high-speed photometry. AM Her shows a variety of high states with frequent transitions between them. TES... Read More about TESS Photometry of AM Her and AR UMa: Binary Parameters, Cyclotron Emission Modeling, and Mass Transfer Duty Cycles.

Evolution of spin in the intermediate polar CC sculptoris (2024)
Journal Article
Paice, J. A., Scaringi, S., Castro Segura, N., Sahu, A., Iłkiewicz, K., Coppejans, D. L., …Veresvarska, M. (2024). Evolution of spin in the intermediate polar CC sculptoris. Monthly Notices of the Royal Astronomical Society: Letters, 531(1), L82-L86. https://doi.org/10.1093/mnrasl/slae035

We report on spin variations in the intermediate polar and cataclysmic variable CC Scl, as seen by the Transiting Exoplanet Survey Satellite (TESS). By studying both the spin period and its harmonic, we find that the spin has varied since it was firs... Read More about Evolution of spin in the intermediate polar CC sculptoris.

The Peculiar Bursting Nature of CP Pup (2024)
Journal Article
Veresvarska, M., Scaringi, S., Hagen, S., De Martino, D., Done, C., Ilkiewicz, K., …Littlefield, C. (2024). The Peculiar Bursting Nature of CP Pup. Monthly Notices of the Royal Astronomical Society, 529(1), 664-672. https://doi.org/10.1093/mnras/stae573

The classical nova CP Puppis has been observed to have particularly puzzling and peculiar properties. In particular, this classical nova displays occasional bursts in its long-term ASAS-SN light curve. Here, we report on five sectors of TESS data dis... Read More about The Peculiar Bursting Nature of CP Pup.

Classifying Optical (Out)bursts in Cataclysmic Variables: The Distinct Observational Characteristics of Dwarf Novae, Micronovae, Stellar Flares, and Magnetic Gating (2024)
Journal Article
Iłkiewicz, K., Scaringi, S., Veresvarska, M., De Martino, D., Littlefield, C., Knigge, C., …Sahu, A. (2024). Classifying Optical (Out)bursts in Cataclysmic Variables: The Distinct Observational Characteristics of Dwarf Novae, Micronovae, Stellar Flares, and Magnetic Gating. Astrophysical Journal Letters, 962(2), Article L34. https://doi.org/10.3847/2041-8213/ad243c

Cataclysmic variables can experience short optical brightenings, which are commonly attributed to phenomena such as dwarf novae outbursts, micronovae, donor flares, or magnetic gating bursts. Since these events exhibit similar observational character... Read More about Classifying Optical (Out)bursts in Cataclysmic Variables: The Distinct Observational Characteristics of Dwarf Novae, Micronovae, Stellar Flares, and Magnetic Gating.

MELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy (2024)
Journal Article
Royer, P., Merle, T., Dsilva, K., Sekaran, S., Van Winckel, H., Frémat, Y., …Waelkens, C. (2024). MELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy. Astronomy & Astrophysics, 681, Article A107. https://doi.org/10.1051/0004-6361/202346847

Aims. Over the past decades, libraries of stellar spectra have been used in a large variety of science cases, including as sources of reference spectra for a given object or a given spectral type. Despite the existence of large libraries and the incr... Read More about MELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy.