All Outputs (6)

A new measurement of the intergalactic temperature at z∼2.55 − 2.95 (2017)
Journal Article
Rorai, A., Carswell, R., Haehnelt, M. G., Becker, G. D., Bolton, J. S., & Murphy, M. T. (2017). A new measurement of the intergalactic temperature at z∼2.55 − 2.95. Monthly Notices of the Royal Astronomical Society, 474(3), 2871-2883. https://doi.org/10.1093/mnras/stx2862

We present two measurements of the temperature-density relationship (TDR) of the intergalactic medium (IGM) in the redshift range 2.55 < z < 2.95 using a sample of 13 high-quality quasar spectra and high resolution numerical simulations of the IGM. O... Read More about A new measurement of the intergalactic temperature at z∼2.55 − 2.95.

First constraints on fuzzy dark matter from Lyman-alpha forest data and hydrodynamical simulations (2017)
Journal Article
Irsic, V., Viel, M., Haehnelt, M. G., Bolton, J. S., & Becker, G. D. (2017). First constraints on fuzzy dark matter from Lyman-alpha forest data and hydrodynamical simulations. Physical Review Letters, 119(3), Article 031302. https://doi.org/10.1103/PhysRevLett.119.031302

We present constraints on the masses of extremely light bosons dubbed fuzzy dark matter from Lyman- ? forest data. Extremely light bosons with a De Broglie wavelength of ~ 1 kpc have been suggested as dark matter candidates that may resolve some of t... Read More about First constraints on fuzzy dark matter from Lyman-alpha forest data and hydrodynamical simulations.

New constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman-alpha forest data (2017)
Journal Article
Iršič, V., Viel, M., Haehnelt, M. G., Bolton, J. S., Cristiani, S., Becker, G. D., …Worseck, G. (2017). New constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman-alpha forest data. Physical Review D, 96(2), Article 023522. https://doi.org/10.1103/PhysRevD.96.023522

We present new measurements of the free-streaming of warm dark matter (WDM) from Lyman-α flux-power spectra. We use data from the medium resolution, intermediate redshift XQ-100 sample observed with the X-shooter spectrograph (z = 3 – 4.2) and the hi... Read More about New constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman-alpha forest data.

The effect of stellar and AGN feedback on the low-redshift Lyman α forest in the Sherwood simulation suite (2017)
Journal Article
Sijacki, D., Puchwein, E., Haehnelt, M. G., Nasir, F., Bolton, J. S., Viel, M., & Kim, T. (2017). The effect of stellar and AGN feedback on the low-redshift Lyman α forest in the Sherwood simulation suite. Monthly Notices of the Royal Astronomical Society, 471(1), 1056-1069. https://doi.org/10.1093/mnras/stx1648

We study the effect of different feedback prescriptions on the properties of the low redshift (z ≤ 1.6) Ly α forest using a selection of hydrodynamical simulations drawn from the Sherwood simulation suite. The simulations incorporate stellar feedback... Read More about The effect of stellar and AGN feedback on the low-redshift Lyman α forest in the Sherwood simulation suite.

Gas around galaxy haloes - III: hydrogen absorption signatures around galaxies and QSOs in the Sherwood simulation suite (2017)
Journal Article
Meiksin, A., Bolton, J. S., & Puchwein, E. (2017). Gas around galaxy haloes - III: hydrogen absorption signatures around galaxies and QSOs in the Sherwood simulation suite. Monthly Notices of the Royal Astronomical Society, 468(2), 1893-1901. https://doi.org/10.1093/mnras/stx191

Modern theories of galaxy formation predict that galaxies impact on their gaseous surroundings, playing the fundamental role of regulating the amount of gas converted into stars. While star-forming galaxies are believed to provide feedback through ga... Read More about Gas around galaxy haloes - III: hydrogen absorption signatures around galaxies and QSOs in the Sherwood simulation suite.

Diagnosing galactic feedback with line broadening in the low redshift Lyα forest (2017)
Journal Article
Viel, M., Haehnelt, M. G., Bolton, J. S., Kim, T., Puchwein, E., Nasir, F., & Wakker, B. P. (2017). Diagnosing galactic feedback with line broadening in the low redshift Lyα forest. Monthly Notices of the Royal Astronomical Society: Letters, 467(1), L86-L90. https://doi.org/10.1093/mnrasl/slx004

We compare the low-redshift (z 0.1) Lyα forest from hydrodynamical simulations with data from the Cosmic Origins Spectrograph. We find the tension between the observed number of lines with b-parameters in the range of 25–45 km s−1 and the prediction... Read More about Diagnosing galactic feedback with line broadening in the low redshift Lyα forest.