Zobrazeno 1 - 10
of 664
pro vyhledávání: '"Hahlin, A"'
Autor:
Kochukhov, O., Amarsi, A. M., Lavail, A., Ruh, H. L., Hahlin, A., Hatzes, A., Nagel, E., Piskunov, N., Pouilly, K., Reiners, A., Rengel, M., Seemann, U., Shulyak, D.
Publikováno v:
A&A 689, A36 (2024)
The A-type metallic-line (Am) stars are typically considered to be non-magnetic or possessing very weak sub-G magnetic fields. This view has been repeatedly challenged in the literature, most commonly for the bright hot Am star o Peg. Several studies
Externí odkaz:
http://arxiv.org/abs/2405.12778
Autor:
Hahlin, Angelica, Widmark, Anna
Background: The patient’s last days affect the relative immensely and without support the relative can suffer from prolonged grief and ill health. In the meeting between nurses and relatives of patients who receive end of life care, it is important
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-66011
The accretion and ejection of mass in pre-main sequence (PMS) stars are key processes in stellar evolution as they shape the stellar angular momentum transport necessary for the stars' stability. Magnetospheric accretion onto classical T Tauri stars
Externí odkaz:
http://arxiv.org/abs/2402.01419
We aim to characterise the magnetic field of the eclipsing binary CU Cnc. The determination of magnetic field parameters of this target enables comparisons with both observations of similar stars and theoretical predictions of the magnetic field stre
Externí odkaz:
http://arxiv.org/abs/2402.00721
Autor:
Hahlin, Amanda
With the growing demand for sustainable options, the existing sorting capacities are limiting the potential for fiber-to-fiber recycling. With the help of near-infrared spectroscopy (NIRS), automated sorting of textiles with high accuracy is possible
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-29928
Determination of small-scale magnetic fields on Sun-like stars in the near-infrared using CRIRES$^+$
Autor:
Hahlin, A., Kochukhov, O., Rains, A. D., Lavail, A., Hatzes, A., Piskunov, N., Reiners, A., Seemann, U., Boldt-Christmas, L., Guenther, E. W., Heiter, U., Nortmann, L., Yan, F., Shulyak, D., Smoker, J. V., Rodler, F., Bristow, P., Dorn, R. J., Jung, Y., Marquart, T., Stempels, E.
Publikováno v:
A&A 675, A91 (2023)
We aim to characterise the small-scale magnetic fields for a sample of 16 Sun-like stars and investigate the capabilities of the newly upgraded near-infrared (NIR) instrument CRIRES$^+$ at the VLT in the context of small-scale magnetic field studies.
Externí odkaz:
http://arxiv.org/abs/2305.06873
Classical T Tauri stars (CTTSs) are young stellar objects that accrete materials from their accretion disc influenced by their strong magnetic field. The magnetic pressure truncates the disc at a few stellar radii and forces the material to leave the
Externí odkaz:
http://arxiv.org/abs/2211.06191
Autor:
Hahlin, A., Kochukhov, O.
Publikováno v:
A&A 659, A151 (2022)
Aims. The goal of this study is to investigate the small-scale magnetic fields of the two spectroscopic binary T Tauri stars V1878 Ori and V4046 Sgr. This is done to complete the observational characterisation of the surface magnetic fields of these
Externí odkaz:
http://arxiv.org/abs/2201.04978
Autor:
Hahlin, Axel
Magnetic fields are important for multiple physical processes in and around stars, for these reasons improving the understanding of how they are generated and maintained is of great value. In this work the magnetic field structure of the eclipsing bi
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-411480
Publikováno v:
A&A 650, A197 (2021)
The goal of this work is to study magnetic fields of the cool, eclipsing binary star UV Piscium (UV Psc). This system contains two active late-type stars, UV Psc A (G5V) and B (K3V). To obtain a complete picture, the properties of both global and loc
Externí odkaz:
http://arxiv.org/abs/2105.02542