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Filtering by: Publisher Letters of the Astrophysical Journal Remove constraint Publisher: Letters of the Astrophysical Journal

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  • Wp988p170?file=thumbnail
    Article
    Jess, David B.
    Recent high-resolution observations of sunspot oscillations using simultaneously operated ground- and space-based telescopes reveal the intrinsic connection between different layers of the solar atmosphere. However, it is not clear whether these oscil . . .
  • 6w924f54w?file=thumbnail
    Article
    Cookson, Angela M.
    We examine the relative intensity of sunspot umbrae during the period from 1986 to 2012 using photometric images from the San Fernando Observatory. We confirm the presence of a relationship between the mean umbral core intensity and the mean sunspot a . . .
  • 79408131v?file=thumbnail
    Article
    Wang, Shuo
    The commonly observed jets provide critical information on the small-scale energy release in the solar atmosphere. We report a near disk-center jet on 2010 July 20, observed by the Solar Dynamics Observatory. In this event, the standard interchange ma . . .
  • R494vp16v?file=thumbnail
    Article
    Wang, Shuo
    Sigmoids are one of the most important precursor structures for solar eruptions. In this Letter, we study a sigmoid eruption on 2010 August 1 with EUV data obtained by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamic Observatory (SDO) . . .
  • 02870z48w?file=thumbnail
    Article
    Cadavid, Ana Cristina
    We analyze a 9 hr sequence of simultaneous, high-resolution, high-cadence G-band and K-line solar filtergrams plus magnetograms of lower cadence and resolution. Images include both network and internetwork. The magnetic and filtergram intensities, the . . .