Irregular emission cycles in the Oe star HD 60 848

Rauw, Grégor; Nazé, Yaël; Campos, F.; Fló, J. Guarro; Sollecchia, U.

doi:10.1016/j.newast.2020.101462

Cited by 2 publications

(2 citation statements)

References 71 publications

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“…Once these X-ray observations are scheduled, TIGRE further offers the possibility to collect optical spectra nearly simultaneously with the X-ray data. This strategy has been applied with success to the cases of a disk fading event in HD 45314 (Rauw et al, 2018), a cyclic outburst of the normal (i.e., not γ Cas) Oe-star HD 60848 (Rauw et al, 2021), and most recently an outburst of γ Cas itself (see Figure 13). The multiwavelength data collected in those campaigns favour scenarios where the X-ray emission arises from the innermost parts of the Be disk, unlike what one would expect if the X-ray emission were due to interactions with a companion.…”

Section: Hot Starsmentioning

confidence: 99%

Eight Years of TIGRE Robotic Spectroscopy: Operational Experience and Selected Scientific Results

González‐Pérez

Mittag

Schmitt

et al. 2022

Front. Astron. Space Sci.

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TIGRE (Telescopio Internacional de Guanajuato Robótico Espectroscópico) has been operating in fully robotic mode in the La Luz Observatory (Guanajuato, Mexico) since the end of 2013. With its sole instrument, HEROS, an échelle spectrograph with a spectral resolution R ∼20,000, TIGRE has collected more than 48,000 spectra of 1,151 different sources with a total exposure time of more than 11,000 h in these 8 years. Here we briefly describe the system and the upgrades performed during the last years. We present the statistics of the weather conditions at the La Luz Observatory, emphasizing the characteristics that affect the astronomical observations. We evaluate the performance and efficiency of TIGRE, both optical and operational, and describe the improvements of the system implemented to optimize the telescope’s performance and meet the requirements of the astronomer in terms of timing constraints for the observations and the quality of the spectra. We describe the actions taken to slow down the optical efficiency loss due to the aging of the optical surfaces as well as the upgrades of the scheduler and the observing procedures to minimize the time lost due to interrupted observations or observations that do not reach the required quality. Finally, we highlight a few of the main scientific results obtained with TIGRE data.

show abstract

Section: Hot Starsmentioning

confidence: 99%

Eight Years of TIGRE Robotic Spectroscopy: Operational Experience and Selected Scientific Results

González‐Pérez

Mittag

Schmitt

et al. 2022

Front. Astron. Space Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…This strategy has been applied with success to the cases of a disk fading event in HD 45314 (Rauw et al, 2018), a cyclic outburst of the normal (i.e. not γ Cas) Oe-star HD 60848 (Rauw et al, 2021), and most recently an outburst of γ Cas itself (see Fig. 13).…”

Section: Hot Starsmentioning

confidence: 99%

Eight years of TIGRE robotic spectroscopy: Operational experience and selected scientific results

González‐Pérez¹,

Mittag²,

Schmitt³

et al. 2022

Preprint

View full text Add to dashboard Cite

TIGRE (Telescopio Internacional de Guanajuato Rob ótico Espectrosc ópico) has been operating in fully robotic mode in the Observatory La Luz (Guanajuato, Mexico) since the end of 2013. With its sole instrument, HEROS, an échelle spectrograph with a spectral resolution R∼20000, TIGRE has collected more than 48000 spectra of 1151 different sources with a total exposure time of more than 11000 hours in these eight years. Here we briefly describe the system and the upgrades performed during the last years. We present the statistics of the weather conditions at the La Luz Observatory, emphasizing the characteristics that affect the astronomical observations. We evaluate the performance and efficiency of TIGRE, both optical and operational, and describe the improvements of the system implemented to optimize the telescope's performance and meet the requirements of the astronomer in terms of timing constraints for the observations and the quality of the spectra. We describe the actions taken to slow down the optical efficiency loss due to the aging of the optical surfaces as well as the upgrades of the scheduler and the observing procedures to minimize the time lost due to interrupted observations or observations that do not reach the required quality. Finally, we highlight a few of the main scientific results obtained with TIGRE data.

show abstract

Irregular emission cycles in the Oe star HD 60 848

Cited by 2 publications

References 71 publications

Eight Years of TIGRE Robotic Spectroscopy: Operational Experience and Selected Scientific Results

Eight Years of TIGRE Robotic Spectroscopy: Operational Experience and Selected Scientific Results

Eight years of TIGRE robotic spectroscopy: Operational experience and selected scientific results

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