47 citations · 158 across the 10 of their papers we have counts for
10 papers
Exploring the Cosmic Dawn through the 21 cm Forest and High-redshift Radio Sources with the SKA
Junsong Cang, Benedetta Ciardi, Barun Maity +12
The 21~cm forest, seen as absorption features in the spectra of distant radio sources, is produced by intervening neutral hydrogen and offers a direct probe of the neutral intergal…
Sensitivity of the Hongmeng 21cm experiment to scattering dark matter
Junsong Cang, Yu Gao, Yin-Zhe Ma
Scattering between dark matter and baryons can cool the intergalactic medium temperature and deepen the 21cm signal. Such interactions have been proposed to explain the unusually d…
Investigating Primordial Black Hole Accretion through Cosmic Optical Depth
Zi-Xuan Zhang, Junsong Cang, Yu Gao +1
Primordial black holes (PBH) accretion in the late Universe can lead to significant mass growth. A larger mass further accelerates the accretion radiation output for PBHs with init…
The EDGES measurement disfavors an excess radio background during the cosmic dawn
Junsong Cang, Andrei Mesinger, Steven G. Murray +3
In 2018 the EDGES experiment claimed the first detection of the global cosmic 21cm signal, which featured an absorption trough centered around with a depth of approxima…
Signatures of inhomogeneous dark matter annihilation on 21-cm
Junsong Cang, Yu Gao, Yin-Zhe Ma
The energy released from dark matter (DM) annihilation leads to additional ionization and heating of the intergalactic gas, impacting the hydrogen 21-cm signal during the cosmic da…
Implications of Pulsar Timing Array Results for High Frequency Gravitational Waves
Junsong Cang, Yu Gao, Yiming Liu +1
Several pulsar timing array (PTA) experiments such as NANOGrav and PPTA recently reported evidence of a gravitational wave (GW) background at nano-Hz frequency band. This signal ca…
Implications for primordial black holes from cosmological constraints on scalar-induced gravitational wave
Junsong Cang, Yin-Zhe Ma, Yu Gao
Sufficiently large scalar perturbations in the early Universe can create over-dense regions that collapse into primordial black holes (PBH). This process is accompanied by the emis…
21-cm constraints on spinning primordial black holes
Junsong Cang, Yu Gao, Yin-Zhe Ma
Hawking radiation from primordial black holes (PBH) can ionize and heat up neutral gas during the cosmic dark ages, leaving imprints on the global 21-cm signal of neutral hydrogen.…
Prospects of Future CMB Anisotropy Probes for Primordial Black Holes
Junsong Cang, Yu Gao, Yinzhe Ma
Cascade of particles injected as Hawking Radiation from Primordial Black Holes (PBH) can potentially change the cosmic recombination history by ionizing and heating the intergalact…
Probing Dark Matter with Future CMB Measurements
Junsong Cang, Yu Gao, Yin-Zhe Ma
Dark Matter (DM) annihilation and decay during the Dark Ages can affect the cosmic ionization history and leave imprints in the Cosmic Microwave Background (CMB) anisotropy spectra…