Recent submissions 

espace: Recent submissions

Now showing items 1606-1615 of 76081

    • Calculation and Uncertainty of Fast Radio Burst Structure Based on Smoothed Data
      Sutinjo, Adrian ; Scott, Dancia ; James, Clancy ; Glowacki, Marcin ; Bannister, K.W.; Cho, H.; Day, C.K.; Deller, A.T.; Perrett, T.P.; Shannon, R.M. (2023)
      Studies of the time-domain structure of fast radio bursts (FRBs) require an accurate estimate of the FRB dispersion measure in order to recover the intrinsic burst shape. Furthermore, the exact dispersion measure is itself ...
    • Modelling repetition in zDM: A single population of repeating fast radio bursts can explain CHIME data
      James, Clancy (2023)
      Regardless of whether or not all fast radio bursts (FRBs) repeat, those that do form a population with a distribution of rates. This work considers a power-law model of this population, with rate distribution between and. ...
    • MIGHTEE: deep 1.4 GHz source counts and the sky temperature contribution of star-forming galaxies and active galactic nuclei
      Hale, C.L.; Whittam, I.H.; Jarvis, M.J.; Best, P.N.; Thomas, N.L.; Heywood, I.; Prescott, M.; Adams, N.; Afonso, J.; An, F.; Bowler, R.A.A.; Collier, Jordan ; Cook, R.H.W.; Davé, R.; Frank, B.S.; Glowacki, M.; Hatfield, P.W.; Kolwa, S.; Lovell, C.C.; Maddox, N.; Marchetti, L.; Morabito, L.K.; Murphy, E.; Prandoni, I.; Randriamanakoto, Z.; Taylor, A.R. (2023)
      We present deep 1.4 GHz source counts from ∼5 deg2 of the continuum Early Science data release of the MeerKAT International Gigahertz Tiered Extragalactic Exploration survey down to S1.4GHz ∼15 μJy. Using observations ...
    • Atomic-scale Element and Isotopic Investigation of 25 Mg-rich Stardust from an H-burning Supernova
      Nevill, Neville D. ; Bland, Phil ; Saxey, David ; Rickard, William ; Guagliardo, P.; Timms, Nick ; Forman, Lucy ; Daly, Luke ; Reddy, Steven (2024)
      We have discovered a presolar olivine from ALH 77307 with the highest 25Mg isotopic composition measured in a silicate to date (δ 25Mg = 3025.1‰ ± 38.3‰). Its isotopic compositions challenge current stellar models, with ...
    • MIGHTEE: Multi-wavelength counterparts in the COSMOS field
      Whittam, I.H.; Prescott, M.; Hale, C.L.; Jarvis, M.J.; Heywood, I.; An, F.; Glowacki, Marcin ; Maddox, N.; Marchetti, L.; Morabito, L.K.; Adams, N.J.; Bowler, R.A.A.; Hatfield, P.W.; Varadaraj, R.G.; Collier, J.; Frank, B.; Taylor, A.R.; Santos, M.G.; Vaccari, M.; Afonso, J.; Ao, Y.; Delhaize, J.; Knowles, K.; Kolwa, S.; Randriamampandry, S.M.; Randriamanakoto, Z.; Smirnov, O.; Smith, D.J.B.; White, S.V. (2024)
      In this paper, we combine the Early Science radio continuum data from the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Survey, with optical and near-infrared data and release the cross-matched ...
    • The host galaxy of FRB 20171020A revisited
      Lee-Waddell, Karen ; James, Clancy ; Ryder, S.D.; Mahony, E.K.; Bahramian, Arash ; Koribalski, B.S.; Kumar, P.; Marnoch, L.; North-Hickey, F.O.; Sadler, E.M.; Shannon, R.; Tejos, N.; Thorne, J.E.; Wang, J.; Wayth, Randall (2023)
      The putative host galaxy of FRB 20171020A was first identified as ESO 601-G036 in 2018, but as no repeat bursts have been detected, direct confirmation of the host remains elusive. In light of recent developments in the ...
    • A Fast Radio Burst in a Compact Galaxy Group at z ∼ 1
      Gordon, A.C.; Fong, W.F.; Simha, S.; Dong, Y.; Kilpatrick, C.D.; Deller, A.T.; Ryder, S.D.; Eftekhari, T.; Glowacki, Marcin ; Marnoch, L.; Muller, A.R.; Nugent, A.E.; Palmese, A.; Prochaska, J.X.; Rafelski, M.; Shannon, R.M.; Tejos, N. (2024)
      FRB 20220610A is a high-redshift fast radio burst (FRB) that has not been observed to repeat. Here, we present rest-frame UV and optical Hubble Space Telescope observations of the field of FRB 20220610A. The imaging reveals ...
    • WALLABY Pilot Survey: H i in the Host Galaxy of a Fast Radio Burst
      Glowacki, Marcin ; Lee-Waddell, Karen ; Deller, A.T.; Deg, N.; Gordon, A.C.; Grundy, J.A.; Marnoch, L.; Shen, A.X.; Ryder, S.D.; Shannon, R.M.; Wong, O.I.; Dénes, H.; Koribalski, B.S.; Murugeshan, C.; Rhee, J.; Westmeier, T.; Bhandari, S.; Bosma, A.; Holwerda, B.W.; Prochaska, J.X. (2023)
      We report on the commensal ASKAP detection of a fast radio burst (FRB), FRB 20211127I, and the detection of neutral hydrogen (H i) emission in the FRB host galaxy, WALLABY J131913-185018 (hereafter W13-18). This collaboration ...
    • H i, FRB, What’s Your z: The First FRB Host Galaxy Redshift from Radio Observations
      Glowacki, Marcin ; Bera, Apurba ; Lee-Waddell, Karen ; Deller, A.T.; Dial, T.; Gourdji, K.; Simha, S.; Caleb, M.; Marnoch, L.; Prochaska, J.X.; Ryder, S.D.; Shannon, R.M.; Tejos, N. (2024)
      Identification and follow-up observations of the host galaxies of fast radio bursts (FRBs) not only help us understand the environments in which the FRB progenitors reside, but also provide a unique way of probing the ...
    • The Demographics, Stellar Populations, and Star Formation Histories of Fast Radio Burst Host Galaxies: Implications for the Progenitors
      Gordon, A.C.; Fong, W.F.; Kilpatrick, C.D.; Eftekhari, T.; Leja, J.; Prochaska, J.X.; Nugent, A.E.; Bhandari, S.; Blanchard, P.K.; Caleb, M.; Day, C.K.; Deller, A.T.; Dong, Y.; Glowacki, Marcin ; Gourdji, K.; Mannings, A.G.; Mahoney, E.K.; Marnoch, L.; Miller, A.A.; Paterson, K.; Rastinejad, J.C.; Ryder, S.D.; Sadler, E.M.; Scott, D.R.; Sears, H.; Shannon, R.M.; Simha, S.; Stappers, B.W.; Tejos, N. (2023)
      We present a comprehensive catalog of observations and stellar population properties for 23 highly secure host galaxies of fast radio bursts (FRBs). Our sample comprises 6 repeating FRBs and 17 apparent nonrepeaters. We ...