Výsledky vyhledávání - "Donovan, Jennifer L."

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ESO 381-47, an early-type galaxy with extended HI and a star forming ring

Autor: Donovan, Jennifer L., Serra, Paolo, van Gorkom, J. H., Trager, S. C., Oosterloo, Tom, Hibbard, J. E., Morganti, Raffaella, Schiminovich, David, van der Hulst, J. M.

ESO 381-47 is an early type galaxy with an extended HI disk. GALEX and very deep optical images reveal a distinct stellar ring far outside the optical body with a diameter of ~30 kpc, which has undergone recent star formation at 1.8 x 10^-4 Msun/yr/k

Externí odkaz: http://arxiv.org/abs/0903.5331

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How Dry Are Red Mergers?

Autor: Donovan, Jennifer L., Hibbard, J. E., van Gorkom, J. H.

Publikováno v: Astron.J.134:1118-1123,2007

The focus of current research in galaxy evolution has increasingly turned to understanding the effect that mergers have on the evolution of systems on the red sequence. For those interactions purported to occur dissipationlessly (so called "dry merge

Externí odkaz: http://arxiv.org/abs/0706.0734

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Exploring High-Velocity NH_3(6,6) Emission at the Center of our Galaxy

Autor: Donovan, Jennifer L., Herrnstein, Robeson M., Ho, Paul T. P.

Publikováno v: Astrophys.J.647:1159-1169,2006

Using the NH\3 (6,6) transition, which samples dense ($\sim 10^{5}$) molecular gas with an energy above ground of 412 K, we find hot gas at high velocities (--142 to --210 km s$^{-1}$) associated with the central 2 pc of the Galactic center. This mat

Externí odkaz: http://arxiv.org/abs/astro-ph/0605280

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