Spectral Energy Distributions and Age Estimates of 39 Globular Clusters in M31

Spectral Energy Distributions of a set of HII regions in M33 (HerM33es)

Spectral energy distributions of an AKARI-SDSS-GALEX sample of galaxies

Spectral energy distributions of quasars selected in the mid-infrared

Spectral Energy Distributions of type 2 QSOs: obscured star formation at high redshifts

Spectral index and running of $g_{NL}$ from an isocurvature scalar field

Spectral index properties of milliJansky radio sources

Spectral Index Studies of the Diffuse Radio Emission in Abell 2256: Implications to Merger Activity

Spectral models of stellar populations resolved in chemical abundances

Spectral monitoring of AGNs: Preliminary results for Ark 564 and Arp 102B

Spectral optical monitoring of 3C 390.3 in 1995-2007: II. Variability of the spectral line parameters

Spectral Polarization of the Redshifted 21 cm Absorption Line Toward 3C 286

Spectral Properties and the Effect on Redshift Cut-off of Compact AGNs from the AT20G Survey

Spectral properties of Type Ia supernovae up to z~0.3

Spectral synthesis including massive binaries

Spectral variability in faint high frequency peakers

Spectral variability of quasars from multi-epoch photometric data in the Sloan Digital Sky Survey Stripe 82

Spectral-based k-corrections and implications for the colour-magnitude relation of E/S0s and its evolution

Spectro-photometric close pairs in GOODS-S: major and minor companions of intermediate-mass galaxies

Spectroastrometry of rotating gas disks for the detection of supermassive black holes in galactic nuclei. I. Method and simulations