Starburst-driven Mass Loss from Dwarf Galaxies: Efficiency and Metal Ejection
- M. Mac Low, A. Ferrara
- Physics
- 24 January 1998
We model the effects of repeated supernova (SN) explosions from starbursts in dwarf galaxies on the interstellar medium of these galaxies, taking into account the gravitational potential of their…
The Fragmentation of Pre-enriched Primordial Objects
- V. Bromm, A. Ferrara, P. Coppi, R. Larson
- Physics
- 17 April 2001
Recent theoretical investigations have suggested that the formation of the very first stars, forming out of metal-free gas, was fundamentally different from the present-day case. The question then…
Cosmological radiative transfer codes comparison project – I. The static density field tests
- I. Iliev, B. Ciardi, Rikkyo U. Lanl
- Physics
- 8 March 2006
Radiative transfer (RT) simulations are now at the forefront of numerical astrophysics. They are becoming crucial for an increasing number of astrophysical and cosmological problems; at the same time…
Dust-to-Gas Ratio and Metal Abundance in Dwarf Galaxies
- U. Lisenfeld, A. Ferrara
- Physics
- 6 May 1997
We have compared the metallicity (represented by oxygen abundance), Xo, and the dust-to-gas ratio, 𝒟, in a sample of dwarf galaxies. For dwarf irregulars (dIrrs) we find a good correlation between…
ALMA constraints on the faint millimetre source number counts and their contribution to the cosmic infrared background
- S. Carniani, R. Maiolino, R. Williams
- Physics
- 2 February 2015
We have analysed 18 ALMA continuum maps in Bands 6 and 7, with rms down to 7.8 μJy, to derive differential number counts down to 60 μJy and 100 μJy at λ = 1.3 mm and λ = 1.1 mm, respectively.…
Signatures of X-rays in the early Universe
- A. Mesinger, A. Ferrara, D. Spiegel
- Physics
- 27 October 2012
[abridged] With their long mean free paths and efficient heating of the intergalactic medium (IGM), X-rays could have a dramatic impact on the thermal and ionization history of the Universe. We…
Evidence of strong quasar feedback in the early Universe
- R. Maiolino, S. Gallerani, E. Piconcelli
- Physics
- 13 April 2012
Most theoretical models invoke quasar driven outflows to que nch star formation in massive galaxies, and this feedback mechanism is required to account for the population of old and passive galaxies…
Very extended cold gas, star formation and outflows in the halo of a bright QSO at z>6
- C. Cicone, R. Maiolino, C. Feruglio
- Physics
- 15 September 2014
Past observations of QSO host galaxies at z >6 have found cold gas and star formation on compact scales of a few kiloparsecs. We present new high sensitivity IRAM PdBI follow-up observations of the…
Infrared background signatures of the first black holes
- B. Yue, A. Ferrara, R. Salvaterra, Yidong Xu, Xuelei Chen
- Physics
- 22 May 2013
Angular fluctuations of the Near InfraRed Background (NIRB) intensity are observed up to scales $\simlt 1^{\ensuremath{^{\circ}}}$. Their interpretation is challenging as even after removing the…
Planck 2013 results
- J. Alves, C. Bertout, M. Walmsley
- Physics
- 1 November 2014
The Planck design and scanning strategy provide many levels of redundancy that can be exploited to provide tests of internal consistency. One of the most important is the comparison of the 70GHz…
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