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相关论文: Radio Detection of a Local Little Red Dot

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The unprecedented sensitivity of the \textit{James Webb Space Telescope} (\textit{JWST}) has revolutionized our understanding of the early universe. Among the most intriguing \textit{JWST} discoveries are red, very compact objects showing…

星系天体物理 · 物理学 2025-02-07 Muhammad A. Latif , Ammara Aftab , Daniel J. Whalen , Mar Mezcua

The discovery of Little Red Dots (LRDs) -- a population of compact, high-redshift, dust-reddened galaxies -- is one of the most surprising results from JWST. However, the nature of LRDs is still debated: does the near-infrared emission…

星系天体物理 · 物理学 2024-06-14 Tonima Tasnim Ananna , Ákos Bogdán , Orsolya E. Kovács , Priyamvada Natarajan , Ryan C. Hickox

Little red dots (LRDs) are a population of red, compact objects discovered by JWST at $z>4$. At $4<z<8$, they are roughly 100 times more abundant than UV-selected quasars. However, their number density is uncertain at $z<4$ due to the small…

Little Red Dots (LRDs) are enigmatic, compact, red galaxies at high redshift, $z\sim 4$-$7$, discovered by the James Webb Space Telescope. Broad emission lines in the absence of X-ray and radio counterparts suggest that they host accreting…

高能天体物理现象 · 物理学 2026-04-29 Riku Kuze , Kunihito Ioka , Kohta Murase , Shigeo S. Kimura , Kohei Inayoshi

The ``Little Red Dots'' (LRDs) are red and compact galaxies detected in JWST deep fields, mainly in the redshift range $z=4-8$. Given their compactness and the inferred stellar masses in the hypothesis that LRDs are starburst galaxies, the…

星系天体物理 · 物理学 2024-08-29 Carl Audric Guia , Fabio Pacucci , Dale D. Kocevski

Since the launch of James Webb Space Telescope (JWST) in late 2021, our understanding of high-redshift objects has faced several upheavals. JWST has discovered much more massive galaxies and supermassive black holes (SMBH) than cosmological…

星系天体物理 · 物理学 2026-01-05 David D Vaida , Ryan Jeffrey Farber

Recent observations by the James Webb Space Telescope (JWST) have revealed a puzzling population of optically red and compact galaxies with peculiar "V"-shaped spectra at high redshift, known as "Little Red Dots" (LRDs). Until now, most…

The James Webb Space Telescope (JWST) has uncovered many compact galaxies at high redshift with broad hydrogen and helium lines, including the enigmatic population of little red dots (LRDs). The nature of these galaxies is debated and is…

To investigate the radio properties of the recently found high-redshift population, we collected a sample of $919$ little red dots (LRDs) from the literature. By cross-matching their coordinates with the radio catalogues based on the first-…

星系天体物理 · 物理学 2024-12-25 K. Perger , J. Fogasy , S. Frey , K. É. Gabányi

The James Webb Space Telescope (JWST) has unveiled a population of enigmatic, compact sources at high redshift known as ``Little Red Dots'' (LRDs), whose physical nature remains a subject of intense debate. Concurrently, the rapid assembly…

星系天体物理 · 物理学 2026-01-01 Devesh Nandal , Abraham Loeb

One of the most remarkable discoveries of JWST is a population of compact, red sources at z > 4, commonly referred to as Little Red Dots (LRDs). Spectroscopic identifications reported that most LRDs are active galactic nuclei (AGNs), which…

Little Red Dots (LRDs), among the most enigmatic high-redshift discoveries by JWST, are commonly believed to be powered by accreting supermassive black holes. Here, we explore the possibility that these sources are globular clusters in…

The James Webb Space Telescope (JWST) has uncovered an abundant population of compact, extremely red, and X-ray weak objects at $z\gtrsim4$, knows as ``Little Red Dots" (LRDs). These objects exhibit spectral energy distributions that…

星系天体物理 · 物理学 2024-10-29 Hai-Long Huang , Jun-Qian Jiang , Jibin He , Yu-Tong Wang , Yun-Song Piao

One of the most surprising results of early James Webb Space Telescope (JWST) observations is the discovery of an abundance of red, compact, broad-line objects dubbed "little red dots" (LRDs) at $z>4$. Their spatial density…

The James Webb Space Telescope (JWST) has recently discovered a population of compact, red sources at z > 4 known as "Little Red Dots" (LRDs). They are characterized by their V-shaped continuum spectra and prominent broad Balmer emission…

星系天体物理 · 物理学 2026-05-13 Weiyu Ding , Xu Kong , Wei-Jian Guo , Hu Zou , Jialai Wang , Fujia Li , Hongxin Zhang , Jie Song , Jingyi Zhang , Niu Li , Wen-Xiong Li

JWST has unveiled an abundant population of compact broad-line emitters largely at $z\gtrsim4$, the Little Red Dots (LRDs), which might represent a previously unprobed supermassive black hole evolution channel predominant at high redshift.…

星系天体物理 · 物理学 2026-05-15 Kevin Park , Alberto Torralba , Jorryt Matthee , Sara Mascia , Zoltán Haiman , Rohan P. Naidu , Anna de Graaff

James Webb Space Telescope (JWST) has revealed a population of red and compact sources at $z \gtrsim 5$ known as ``Little Red Dots'' (LRDs) that are likely active galactic nuclei (AGNs). Here we present a comprehensive study of the…

星系天体物理 · 物理学 2025-04-18 Zijian Zhang , Linhua Jiang , Weiyang Liu , Luis C. Ho

James Webb Space Telescope (JWST) has uncovered a new population of compact objects that show a unique V-shaped spectral energy distribution (SED) in the UV and optical wavelength range. These so-called "little red dots" (LRDs) often…

We present Very Large Array (VLA) observations at 1.4 GHz and 5 GHz of a sample of 12 Quasi-stellar Objects (QSOs) at z = 3.99 to 4.46. The sources were selected as the brightest sources at 250 GHz from the recent survey of Omont et al.…

天体物理学 · 物理学 2009-11-06 C. L. Carilli , F. Bertoldi , A. Omont , P. Cox , R. G. McMahon , K. G. Isaak
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