2MASS wide field extinction maps: IV. The Orion, Mon R2, Rosette, and Canis Major star forming regions

2mass/Hipparcos Extinctions and Distances in the Serpens - Aquila Region.IV. Error Propagation. Individual stars and mean values

2MASS/SDSS Close Major-Merger Galaxy Pairs: Luminosity Functions and Merger Mass Dependence

2MASSI J1315309-264951: An L Dwarf with Strong and Variable H-alpha Emission

2MASSJ0516288+260738: Discovery of the first eclipsing late K + Brown dwarf system?

2mm observations of the Large Magellanic Cloud at 5' resolution.

2mm Wavelength VLBI of SiO Masers and AGN

2MTF I. The Tully-Fisher Relation in the 2MASS J, H and K Bands

2nd UN/NASA Workshop on International Heliophysical Year and Basic

2nd Workshop of Young Researchers in Astronomy & Astrophysics

2nd-order Fermi acceleration as the origin of the Fermi bubbles

2QZJ215454.3-305654: a radio-quiet BL Lac object or lineless QSO?

2S 0918-549 - Optical identification and study of a new distant low-mass X-ray binary

2s-2p Transitions in the Spectra of CA XVII and TI XIX

2s-photoionisation of atomic magnesium: Shake processes and Coster-Kronig radiationless decay

2S1417-624 - A variable galactic X-ray source near CG312-1

2U 0900-40: a black hole?

2U 1700-37: another black hole?

2XMM J083026+524133: The most X-ray luminous cluster at redshift 1

2XMM J100451.6+411627: A cool core cluster at z=0.82