arXiv
Open Access
2023
Planetary line-to-accretion luminosity scaling relations: Extrapolating to higher-order hydrogen lines
Gabriel-Dominique Marleau
Yuhiko Aoyama
Abstrak
Aoyama et al. (2021, ApJL) provided scaling relations between hydrogen-line luminosities and the accretion luminosity for planetary-mass objects. These fits should be an improvement over blind extrapolations of stellar relations. The fits go up only to the n = 8 electron energy level, but higher-n Balmer lines have been observed in the near-UV at Delorme 1 (AB)b with UVES (Ringqvist et al. 2023). We extend the scaling relations to higher-n levels for the Balmer and other series by fitting the fit coefficients (a, b) themselves and extrapolating them. Within the assumption of an accretion shock as the source of line emission, these fits should be robust for accreting planetary-mass objects.
Topik & Kata Kunci
Penulis (2)
G
Gabriel-Dominique Marleau
Y
Yuhiko Aoyama
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2023
- Bahasa
- en
- Sumber Database
- arXiv
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- Open Access ✓