Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Hou, L. G."'
Unraveling the internal kinematics of open clusters is crucial for understanding their formation and evolution. However, there is a dearth of research on this topic, primarily due to the lack of high-quality kinematic data. Using the exquisite-precis
Externí odkaz:
http://arxiv.org/abs/2402.12160
Autor:
Jing, W. C., Han, J. L., Hong, Tao, Wang, Chen, Gao, X. Y., Hou, L. G., Zhou, D. J., Xu, J., Yang, Z. L.
The pulsar B0458+46 was previously believed to have a distance of about 1.3$~$kpc and to be associated with a nearby supernova remnant, SNR HB9 (G160.9+2.6). We observe the neutral hydrogen (HI) absorption spectrum of PSR B0458+46 by using the Five-h
Externí odkaz:
http://arxiv.org/abs/2306.01246
Open clusters (OCs) are infrequent survivors of embedded clusters gestated in molecular clouds. Up to now, little is known about the initial conditions for the formation of OCs. Here, we studied this issue using high-precision astrometric parameters
Externí odkaz:
http://arxiv.org/abs/2305.04415
In spite of much work, the overall spiral structure morphology of the Milky Way remains somewhat uncertain. In the last two decades, accurate distance measurements have provided us with an opportunity to solve this issue. Using the precise locations
Externí odkaz:
http://arxiv.org/abs/2304.10690
Publikováno v:
ScienceChinaPMA Vol.65, No.12, p.129703 (2022)
As one of the major components of the interstellar medium, the ionized gas in our Milky Way, especially the low-density diffuse component, has not been extensively observed in the radio band. The Galactic Plane Pulsar Snapshot (GPPS) survey covers th
Externí odkaz:
http://arxiv.org/abs/2211.11301
Publikováno v:
ScienceChinaPMA Vol.65, No.12, p.129702 (2022)
Neutral hydrogen (HI) is the fundamental component of the interstellar medium. The Galactic Plane Pulsar Snapshot (GPPS) survey is designed for hunting pulsars by using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) from the visible
Externí odkaz:
http://arxiv.org/abs/2211.11299
Although a large number of Galactic open clusters (OCs) have been identified, the internal kinematic properties (e.g., rotation) of almost all the known OCs are still far from clear. With the high-precision astrometric data of Gaia EDR3, we have deve
Externí odkaz:
http://arxiv.org/abs/2210.01420
Autor:
Hou, L. G.
The spiral structure in the Solar neighborhood is an important issue in astronomy. In the past few years, there is significant progress in observation. The distances for a large number of good spiral tracers, i.e. giant molecular clouds, high-mass st
Externí odkaz:
http://arxiv.org/abs/2110.04446
Autor:
Hao, C. J., Xu, Y., Hou, L. G., Bian, S. B., Li, J. J., Wu, Z. Y., He, Z. H., Li, Y. J., Liu, D. J.
Publikováno v:
A&A 652, A102 (2021)
The structure and evolution of the spiral arms of our Milky Way are basic but long-standing questions in astronomy. In particular, the lifetime of spiral arms is still a puzzle and has not been well constrained from observations. In this work, we aim
Externí odkaz:
http://arxiv.org/abs/2107.06478
Publikováno v:
A&A 645, L8 (2021)
Context. The astrometric satellite Gaia is expected to significantly increase our knowledge as to the properties of the Milky Way. The Gaia Early Data Release 3 (Gaia EDR3) provides the most precise parallaxes for many OB stars, which can be used to
Externí odkaz:
http://arxiv.org/abs/2101.00158