Sentences with phrase «photometric variability»
H$ α $ emission and photometric variability are not correlated in L0 $ - $ T8 dwarfs
https://arxiv.org/
To test for a correlation between magnetic activity and photometric variability, we searched for H$ \ alpha $ emission among eight L3 $ - $ T2 ultra-cool dwarfs with extensive previous photometric monitoring, some of which are known to be variable at 3.6 $ \ mu $ m or 4.5 $ \ mu $ m.
We derive new photometry and confirm the nearly daily photometric variability of PZ Tel A. Using literature data spanning 38 yr, we show that the star also exhibits a long - term variability trend.
In addition, I will also present the first results of my postdoctoral stay at the University of Western Ontario: a search for H - alpha emission in ultra-cool dwarfs to seek a correlation between magnetic activity and photometric variability.
I will also discuss the prospects for detecting and characterising exoplanet weather patterns through monitoring the intrinsic photometric variability of these objects.
In doing so, almost all groups assumed a linear relation between the photometric variability of the stars and the covering fraction (basically: more variability means more spots).
Not exact matches
Two more objects in our sample show evidence of photometric J - band variability, and two others are candidate unresolved binaries based on their spectra.
Abstract: Based on more than four weeks of continuous high cadence photometric monitoring of several hundred members of the young cluster NGC 2264 with two space telescopes, NASA's Spitzer and the CNES CoRoT (Convection, Rotation, and planetary Transits), we provide high quality, multi-wavelength light curves for young stellar objects (YSOs) whose optical variability is dominated by short duration flux burs... ▽ More Based on more than four weeks of continuous high cadence photometric monitoring of several hundred members of the young cluster NGC 2264 with two space telescopes, NASA's Spitzer and the CNES CoRoT (Convection, Rotation, and planetary Transits), we provide high quality, multi-wavelength light curves for young stellar objects (YSOs) whose optical variability is dominated by short duration flux bursts, which we infer are due to enhanced mass accretion rates.