Spectropolarimetry of OJ287

Bibcode
1994AAS...18511004D
de Diego, Jose A.; Gonzalez-Perez, J. Nicolas; Charles, Phil; Kidger, Mark R.
Bibliographical reference

American Astronomical Society, 185th AAS Meeting, #110.04; Bulletin of the American Astronomical Society, Vol. 26, p.1506

Advertised on:
12
1994
Number of authors
4
IAC number of authors
0
Citations
0
Refereed citations
0
Description
The polarization spectrum of OJ287 was obtained during the 1993/94 observing campaign within the OJ-94 International Collaboration. Data were taken on December 17-18-19/1993, an on Januarty 11-12/1994. Between both periods of observations, OJ287 showed minor flare activity, where brightness raised from V=15.75 to V=15.25, and the polarization degree varied between 0.5% and 8%. On the spectra taken on January 11, we have also observed large variations in the polarization angle ~ 90(deg) , associated with changes of ~ 2% in the polarization degreee. We have also observed the [OIII]5007 emission line; we investigate its appearance during change in brightening conditions, and preliminary results will be presented.
Type
Non-refereed

It may interest you

  • Non-refereed
    New Robotic Telescope system progress towards critical design review
    The 4m class New Robotic Telescope (NRT) is an optical facility designed to revolutionize the rapid follow-up and classification of variable and transient objects. The project is at the stage where key systems are progressing through their detailed design phases, which presents a major engineering challenge for all project partners to manage design
    Copley, David et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13094E..3WC
    Citations
    0
  • Non-refereed
    Phase diversity application on the EST MCAO testbench
    Phase Diversity (PD) is a technique widely used to measure and compensate for Non-Common Path Aberrations (NCPA) in optical systems. Beyond its traditional applications, PD has found further uses in solar astrophysics, where it enhances image quality by processing multiple images to correct residual aberrations. In this work, we introduce a
    Rodriguez-Linares, Nicolas et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13097E..5OR
    Citations
    0
  • Non-refereed
    First light of the upgraded Gregor Infrared Spectrograph
    For more than ten years, the Gregor Infrared Spectrograph (GRIS) has been the infrared spectropolarimeter on the Gregor telescope since its inauguration in 2012. The instrument mainly performs polarimetric observations of the wavelength regions at 1083 and 1565nm, which have high scientific potential. There, observers can find spectral lines that
    Quintero Noda, C. et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13094E..42Q
    Citations
    0