We analyze the propagation of waves in sunspots from the photosphere to the chromosphere using time series of co-spatial Ca II H intensity spectra (including...
Multi-parametric Study of Rising 3D Buoyant Flux Tubes in an Adiabatic Stratification Using AMR
We study the buoyant rise of magnetic flux tubes embedded in an adiabatic stratification using two-and three-dimensional, magnetohydrodynamic simulations. We...
Multi-scale Analysis of Magnetic Fields in Filamentary Molecular Clouds in Orion A
New visible and K-band polarization measurements of stars surrounding molecular clouds in Orion A and stars in the Becklin-Neugebauer (BN) vicinity are...
Multi-wavelength Hubble Space Telescope Photometry of Stellar Populations in NGC 288
We present new UV observations for NGC 288, taken with the WFC3 detector on board the Hubble Space Telescope, and combine them with existing optical data from...
Multi-wavelength Lens Reconstruction of a Planck and Herschel-detected Star-bursting Galaxy
We present a source-plane reconstruction of a Herschel and Planck-detected gravitationally lensed dusty star-forming galaxy (DSFG) at z = 1.68 using Hubble...
Multiepoch Multiwavelength Spectra and Models for Blazar 3C 279
Of the blazars detected by EGRET in GeV γ-rays, 3C 279 is not only the best observed by EGRET but also one of the best monitored at lower frequencies. We have...
Multifrequency Analysis of the New Wide-Separation Gravitational Lens Candidate RX J0921+4529
We report the discovery of a new two-image gravitational lens candidate. The system RX J0921+4529 contains two zs=1.66 quasars separated by 6.93" with an H-band...
Multifrequency Studies of the Peculiar Quasar 4C +21.35 during the 2010 Flaring Activity
The discovery of rapidly variable Very High Energy (VHE; E > 100 GeV) γ-ray emission from 4C +21.35 (PKS 1222+216) by MAGIC on 2010 June 17, triggered by the...
Multiline Spectropolarimetry of the Quiet Sun at 5250 and 6302 Å
The reliability of quiet-Sun magnetic field diagnostics based on the Fe I lines at 6302 Å has been questioned by recent work. Here we present the results of a...