Discovery of the propargyl radical (CH2CCH) in TMC-1: one of the most abundant radicals ever found and a key species for cyclization to benzene in cold dark clouds.
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and astrophysics"
DOI: 10.1051/0004-6361/202140553
Abstract: We present the first identification in interstellar space of the propargyl radical (CH2CCH). This species was observed in the cold dark cloud TMC-1 using the Yebes 40m telescope. The six strongest hyperfine components of the… read more here.
Keywords: one abundant; radical ch2cch; propargyl radical; tmc ... See more keywords
Updated constraints on decaying cold dark matter
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2021/05/017
Abstract: In this paper we update the constraints on the simple decaying cold dark matter (DCDM) model with dark radiation (DR) as decay product. We consider two different regimes of the lifetime, i.e. short-lived and long-lived,… read more here.
Keywords: dark matter; cold dark; decaying cold; dcdm ... See more keywords
Probing cold dark matter subhaloes with simulated ALMA observations of macrolensed sub-mm galaxies
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx1708
Abstract: If the dark matter haloes of galaxies contain large numbers of subhaloes as predicted by the Lambda cold dark matter model, these subhaloes are expected to appear in strong galaxy-galaxy lens syste ... read more here.
Keywords: subhaloes simulated; matter subhaloes; matter; probing cold ... See more keywords
Cold dark energy constraints from the abundance of galaxy clusters
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx2549
Abstract: We constrain cold dark energy of negligible sound speed using galaxy cluster abundance observations. In contrast to standard quasi-homogeneous dark energy, negligible sound speed implies clustering of the dark energy fluid at all scales, allowing… read more here.
Keywords: dark energy; cold dark; cluster abundance; energy ... See more keywords
Dark matter dynamics in Abell 3827: New data consistent with standard cold dark matter
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty630
Abstract: We present integral field spectroscopy of galaxy cluster Abell 3827, using Atacama Large Millimetre Array (ALMA) and Very Large Telescope/Multi-Unit Spectroscopic Explorer. It reveals an unusual configuration of strong gravitational lensing in the cluster core, with… read more here.
Keywords: matter; dark matter; abell 3827; matter dynamics ... See more keywords
Can tides disrupt cold dark matter subhaloes?
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz3349
Abstract: The clumpiness of dark matter on sub-kpc scales is highly sensitive to the tidal evolution and survival of subhaloes. In agreement with previous studies, we show that N-body realisations of cold dark matter subhaloes with… read more here.
Keywords: evolution; matter subhaloes; matter; dark matter ... See more keywords
Mass-Discrepancy Acceleration Relation: A Natural Outcome of Galaxy Formation in Cold Dark Matter Halos.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.118.161103
Abstract: We analyze the total and baryonic acceleration profiles of a set of well-resolved galaxies identified in the eagle suite of hydrodynamic simulations. Our runs start from the same initial conditions but adopt different prescriptions for… read more here.
Keywords: galaxy; dark matter; acceleration; relation ... See more keywords