Diagnostic diagrams of H 0 regions in the Local Group
We have studied here for the first time the use of the log(H 0/[N 0]), log (H 0/[S 0]) diagnostic diagram for determining the metallicities and ionization...
Differences and similarities of stellar populations in LAEs and LBGs at z ∼ 3.4-6.8
Lyman alpha emitters (LAEs) and Lyman break galaxies (LBGs) represent the most common groups of star-forming galaxies at high z, and the differences between...
Differences between CO- and calcium triplet-derived velocity dispersions in spiral galaxies: evidence for central star formation?
We examine the stellar velocity dispersions (σ) of a sample of 48 galaxies, 35 of which are spirals, from the Palomar nearby galaxy survey. It is known that for...
Differential attenuation in star-forming galaxies at 0.3 ≲ z ≲ 1.5 in the SHARDS/CANDELS field
We use a sample of 706 galaxies, selected as [O II]λ3727 ([O II]) emitters in the Survey for High-z Absorption Red and Dead Sources (SHARDS) on the CANDELS...
Differential O and Si Abundances in M33 Early B Supergiants
We present non-LTE analyses of four M33 early B supergiant stars and five Galactic counterparts. This is the first time that B supergiants beyond the Magellanic...
Diffuse interstellar bands λ5780 and λ5797 in the Antennae Galaxy as seen by MUSE
Context. Diffuse interstellar bands (DIBs) are faint spectral absorption features of unknown origin. Research on DIBs beyond the Local Group is very limited and...
Diffuse light in Hickson compact groups: the dynamically young system HCG 44
Context: .Compact groups are associations of a few galaxies in which the environment plays an important role in galaxy evolution. The low group velocity...
Direct Confirmation of Two Pattern Speeds in the Double-barred Galaxy NGC 2950
We present the surface photometry and stellar kinematics of NGC 2950, which is a nearby and undisturbed SB0 galaxy hosting two nested stellar bars. We use the...
Direct imaging of haloes and truncations in face-on nearby galaxies
We use ultra-deep imaging from the IAC Stripe 82 Legacy Project to study the surface photometry of 22 nearby, face-on to moderately inclined spiral galaxies...