Search Publications
Diversity of dwarf galaxy IR-submm emission patterns: CLUES from hydrodynamical simulations
Brook, Chris B.; Obreja, Aura; Granato, Gian Luigi +2 more
Context. The spectral energy distributions (SEDs) of low-mass low-metallicity (dwarf) galaxies are a challenging piece of the puzzle of galaxy formation in the near Universe. These SEDs show some particular features in the submillimeter to far-infrared (FIR) wavelength range compared to normal larger galaxies that cannot be explained by the curren…
HST Hα grism spectroscopy of ROLES: a flatter low-mass slope for the z ∼ 1 SSFR-mass relation
Glazebrook, Karl; Skelton, Rosalind E.; Balogh, Michael L. +4 more
We present measurements of star formation rates (SFRs) for dwarf galaxies (M* ∼ 108.5 M_{⊙}) at z ∼ 1 using near-infrared slitless spectroscopy from the Hubble Space Telescope (HST) by targeting and measuring the luminosity of the Hα emission line. Our sample is derived from the Redshift One LDSS3 Emission Line Survey (ROLES)…
Measuring neutrino mass imprinted on the anisotropic galaxy clustering
Oh, Minji; Song, Yong-Seon
The anisotropic galaxy clustering of large scale structure observed by the Baryon Oscillation Spectroscopic Survey Data Release 11 is analyzed to probe the sum of neutrino masses in the small mν lesssim 1 eV limit in which the early broadband shape determined before the last scattering surface is immune from the variation of mν
Distribution of water in the G327.3-0.6 massive star-forming region
van Dishoeck, E. F.; van der Tak, F.; Leurini, S. +3 more
Aims: Following our past study of the distribution of warm gas in the G327.3-0.6 massive star-forming region, we aim here at characterizing the large-scale distribution of water in this active region of massive star formation made of individual objects in different evolutionary phases. We investigate possible variations of the water abundance…
Search for close stellar encounters with the solar system from data on nearby dwarfs
Bobylev, V. V.
Trigonometric parallaxesmeasuredwith ground-based telescopes of the RECONS consortium as part of the CTIOPI program are used to search for stars that have either had an encounter with the solar system in the past or will have such an encounter in the future, at distances of less than a few parsecs. These are mainly low-mass dwarfs and subdwarfs of…
a Photogrammetric Pipeline for the 3d Reconstruction of Cassis Images on Board Exomars Tgo
Cremonese, G.; Thomas, N.; Pommerol, A. +3 more
CaSSIS (Colour and Stereo Surface Imaging System) is the stereo imaging system onboard the European Space Agency and ROSCOSMOS ExoMars Trace Gas Orbiter (TGO) that has been launched on 14 March 2016 and entered a Mars elliptical orbit on 19 October 2016. During the first bounded orbits, CaSSIS returned its first multiband images taken on 22 and 26…
The interstellar medium in Andromeda's dwarf spheroidal galaxies - II. Multiphase gas content and ISM conditions
Wilson, Christine D.; De Looze, Ilse; Baes, Maarten +11 more
We make an inventory of the interstellar medium material in three low-metallicity dwarf spheroidal galaxies of the Local Group (NGC 147, NGC 185 and NGC 205). Ancillary H I, CO, Spitzer Infrared Spectrograph spectra, Hα and X-ray observations are combined to trace the atomic, cold and warm molecular, ionized and hot gas phases. We present new Nobe…
Resolving the Discrepancy of Distance to M60, a Giant Elliptical Galaxy in Virgo
Lee, Myung Gyoon; Jang, In Sung
There is a well-known discrepancy in the distance estimation of M60, a giant elliptical galaxy in Virgo; the planetary nebula luminosity function (PNLF) distance moduli for this galaxy are, on average, 0.4 mag smaller than the values based on the surface brightness fluctuation (SBF) in the literature. We present photometry of the resolved stars in…
Vertical distribution and kinematics of planetary nebulae in the milky way
Bobylev, V. V.; Bajkova, A. T.
Based on published data, we have produced a sample of planetary nebulae (PNe) that is complete within 2 kpc of the Sun. We have estimated the total number of PNe in the Galaxy from this sample to be 17 000±3000 and determined the vertical scale height of the thin disk based on an exponential density distribution to be 197 ± 10 pc. The next sample …
Characteristics of active regions associated to large solar energetic proton events
Bronarska, K.; Michalek, G.
The relationship between properties of active regions (ARs) and solar energetic particles (SEP events, protons with energy ⩾10 MeV) is examined. For this purpose we study 84 SEP events recorded during the SOHO era (1996-2014). We compare properties of these SEP events with associated ARs, flares and CMEs. The ARs are characterized by McIntosh clas…