Skip to main content

10 Result(s)

within P. Molaro Remove this filter English Remove this filter Cosmology Remove this filter

and

  1. No Access

    Chapter and Conference Paper

    Robust Limit on a Varying Proton-to-Electron Mass Ratio from a Single H2 System

    The variation of the dimensionless fundamental physical constant \(\mu = {m}_{p}/{m}_{e}\) can be checked through observation...

    M. Wendt, P. Molaro in From Varying Couplings to Fundamental Physics (2011)

  2. No Access

    Chapter and Conference Paper

    Searching for Chameleon-Like Scalar Fields

    Using the 32-m Medicina, 45-m Nobeyama, and 100-m Effelsberg telescopes we found a statistically significant velocity offset ΔV ≈ 27 ± 3 m s − 1 (1σ) between the inversion transition in NH3(1,1) and low-J rotatio...

    S. A. Levshakov, P. Molaro, M. G. Kozlov… in From Varying Couplings to Fundamental Phys… (2011)

  3. No Access

    Chapter and Conference Paper

    Abundances in Damped Lyα Galaxies

    Damped Lyα galaxies provide a sample of young galaxies where chemical abundances can be derived throughout the whole universe with an accuracy comparable to that for the local universe. Despite a large spread ...

    P. Molaro in Chemical Abundances and Mixing in Stars in the Milky Way and its Satellites (2006)

  4. No Access

    Chapter and Conference Paper

    Evidence of Mixing in Extremely Metal-Poor Giants

    Thirty five extremely metal-poor (EMP) giants (22 of them with a metallicity [Fe/H] ≤ -3.0) have been observed with UVES at the VLT. In these stars the abundance of lithium carbon and nitrogen and also the 12C/13

    M. Spite, R. Cayrel, F. Spite, V. Hill… in Chemical Abundances and Mixing in Stars in… (2006)

  5. No Access

    Chapter and Conference Paper

    Abundance of Heavy Elements in Extremely Metal-Poor Stars

    In the framework of the VLT Large program “First Stars” (165.N-0276(A)), we have measured the abundance of 13 heavy elements using high quality UVES spectra. In this paper, we report on the abundance of Sr and...

    P. François1, R. Cayrel, E. Depagne… in Chemical Abundances and Mixing in Stars in… (2006)

  6. No Access

    Chapter and Conference Paper

    Abundances in Sagittarius Stars

    The Sagittarius dwarf spheroidal is a very complex galaxy, which has undergone prolonged star formation. From the very first high resolution chemical analysis of Sgr stars, conducted using spectra obtained dur...

    P. Bonifacio, S. Zaggia, L. Sbordone… in Chemical Abundances and Mixing in Stars in… (2006)

  7. No Access

    Article

    Spectroscopy of Giants of the Sagittarius Dwarf Galaxy

    In this paper we present the first results of the analysis of intermediate resolution (Δλ ∼ 3.5 Å) spectra of giants of the Sagittarius dwarf galaxy acquired using the ESO NTT telescope. From the deep CCD phot...

    P. Bonifacio, L. Pasquini, P. Molaro, G. Marconi in Astrophysics and Space Science (1999)

  8. No Access

    Article

    On the Nature of Damped LYα Systems: Clues from Determinations of Elemental Abundance Ratios

    We present a study of the [α/Fe-peak] and [N/α] abundance ratios in Damped Lyα (DLA) systems. By using ratios of undepleted elements ([S/Zn] and [N/S]) or when abundances of refractory elements are corrected b...

    M. Centurión, P. Bonifacio, P. Molaro, G. Vladilo in Astrophysics and Space Science (1998)

  9. No Access

    Article

    The local interstellar medium: A test-bed for the galactic ISM

    We outline a method to explore the column density of the Local Interstellar Medium (LISM) using absorptions in the resonance H and K lines of Mgii. The intrinsic strengths of these lines in the temperature and de...

    R. Génova, J. E. Beckman, G. Vladilo, P. Molaro in Astrophysics and Space Science (1989)

  10. No Access

    Article

    Some considerations on the non-detection of interstellar Li and B towards the SN1987a

    A very low upper limit of 0.15 mÅ for the interstellar λ6707 Å Lii line has been recently derived towards the SN1987a by Baade and Magain (1988). This value corresponds toN(Li)<1.4×1011 cm−2 and gives [Li/H]<5.4×...

    P. Molaro, G. Vladilo in Astrophysics and Space Science (1989)