Big data in the energy industry

Bonev, Petyo; Söderberg, Magnus

doi:10.4337/9781788112352.00009

Search citation statements

Order By: Relevance

Paper Sections

Select...

Secondary Standard Sequence1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2019

Publication Types

Select...

Other1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to calibrate secondary Johnson-Cousins BVRI standard stars in the field of HS 1946+7658, we observed the standard sequence established in the globular cluster M 92 (e.g., [7]) at least at two different airmasses. The observations were performed during the following nights: We used the 2 m telescope (2MT; [8], [9]) of the Rozhen National Astronomical Observatory (NAO) equipped with Photometrics AT200 1 (1998 and 1999 data) and Princeton Instruments VersArray:1300B 2 (2009-2014 data) CCD cameras. The images of both HS 1946+7658 and M 92 fields were de-biased, flat fielded (using twilight flats), Table 2.…”

Section: Secondary Standard Sequencementioning

confidence: 99%

A study of the high-luminosity quasar HS 1946+7658

Mihov¹,

Slavcheva-Mihova²

2019

AIP Conference Proceedings

View full text Add to dashboard Cite

We study the variability of the quasar HS 1946+7658 on intra-night time scale based on both our own optical and archival X-ray data. We find the quasar non-variable during about 11 hours of optical monitoring. This is in accordance with the low intranight variability duty cycle of radio-quiet quasars. Regarding the X-rays, we cannot make a firm conclusion about the quasar variability owing to the controversial results of the light curves statistical analysis. In addition, we calibrated Johnson-Cousins BVRI magnitudes of 7 field stars that are to be used as secondary standards.

show abstract

Section: Secondary Standard Sequencementioning

confidence: 99%