New H i observations of KK 69. Is KK 69 a dwarf galaxy in transition?

New Therapist 69

KK Bhomi

New Reference Galaxy Standards for H I Emission Observations

We have taken advantage of the improved baselines and higher sensitivity available with the upgraded Arecibo 305m telescope to create a new H I spectral line catalog of disk galaxies which can be used as a reference catalog for anyone interested in 21-cm spectral line work. In all 108 galaxies were observed, covering 24h of the sky at declinations between 0 < δ < 36 and velocities between 0 – 2...

Deconstructing KK Monopoles

We describe a procedure for finding Kaluza-Klein monopole solutions in deconstructed four and five dimensional supersymmetric gauge theories. In the deconstruction of a four dimensional theory, the KK monopoles are finite-action solutions of the Euclidean equations of motion of the finite lattice spacing theory. The “lattice” KK monopoles can be viewed as constituents of continuum-limit four di...

Absence of H I in the Boötes Dwarf Spheroidal Galaxy

Neutral hydrogen (H i) observations towards the Boötes dwarf spheroidal (dSph) galaxy (hereafter Boötes), a very low luminosity metal-poor Galactic satellite, were obtained using the Parkes Radio Telescope. We do not detect any H i in or around Boötes to a 3σ upper limit of 180 M⊙ within the optical half light radius and 8000 M⊙ within 1.6 kpc. Its H i mass-to-light ratio is less than 0.002 M⊙/...