203 citations · 639 across the 13 of their papers we have counts for
9 papers · 1 filter
On the neutron-capture elements across the Galactic thin disk using Cepheids
R. da Silva, B. Lemasle, G. Bono +19
We present new accurate abundances for five neutron-capture (Y, La, Ce, Nd, Eu) elements in 73 classical Cepheids located across the Galactic thin disk. Individual abundances are b…
Type II Cepheids in the Milky Way disc. Chemical composition of two new W Vir stars: DD Vel and HQ Car
B. Lemasle, V. Kovtyukh, G. Bono +7
A robust classification of Cepheids into their different sub-classes and, in particular, between classical and Type II Cepheids, is necessary to properly calibrate the period-lumin…
On the alpha-element gradients of the Galactic thin disk using Cepheids
K. Genovali, B. Lemasle, R. da Silva +16
We present new homogeneous measurements of Na, Al and three alpha-elements (Mg, Si, Ca) for 75 Galactic Cepheids. The abundances are based on high spectral resolution (R ~ 38,000)…
On the metallicity distribution of classical Cepheids in the Galactic inner disk
K. Genovali, B. Lemasle, G. Bono +10
We present homogeneous and accurate iron abundances for almost four dozen (47) of Galactic Cepheids using high-spectral resolution (R40,000) high signal-to-noise ratio (S/N $…
On the relative distance of Magellanic Clouds using Cepheid NlR and Optical-NIR PW relations
L. Inno, G. Bono, N. Matsunaga +8
We present new estimates of the relative distance of the Magellanic Clouds (MCs) by using NIR and Optical-NIR Cepheid Period Wesenheit (PW) relations. The relative distances are in…
On the distance of the Magellanic Clouds using Cepheid NIR and optical-NIR Period Wesenheit Relations
L. Inno, N. Matsunaga, G. Bono +8
We present the largest near-infrared (NIR) data sets, , ever collected for classical Cepheids in the Magellanic Clouds (MCs). We selected fundamental (FU) and first overtone…
Classical Cepheids, what else?
G. Bono, L. Inno, N. Matsunaga +4
We present new and independent estimates of the distances to the Magellanic Clouds (MCs) using near-infrared (NIR) and optical--NIR period--Wesenheit (PW) relations. The slopes of…
The long-term spectroscopic misadventures of AG Dra with a nod toward V407 Cyg: Degenerates behaving badly
S. N. Shore, K. Genovali, G. M. Wahlgren
We present some results of an ongoing study of the long-term spectroscopic variations of AG Dra, a prototypical eruptive symbiotic system. We discuss the effects of the environment…
The spectroscopic evolution of the symbiotic star AG Draconis. I.The O VI Raman, Balmer, and helium emission line variations during the outburst of 2006-2008
S. N. Shore, G. M. Wahlgren, K. Genovali +6
AG Dra is one of a small group of low metallicity S-type symbiotic binaries with K-type giants that undergoes occasional short-term outbursts of unknown origin. Our aim is to study…