I study the formation of high-mass stars by observing their parent molecular clouds at high angular resolution, using submm/mm/cm interferometers including
plus space- and ground-based single dish telescopes including
I spend 25% of my working time at the
European ALMA Regional Center
(EU ARC) for my functional work. I enjoy serving as an astronomer on duty (AoD), contact scientist (CS), and data analyst (QA2) at the EU ARC, which means I visit the ALMA site in Chile regularly, communicate with ALMA observers about updates of their observing projects, reduce fresh ALMA data right after observations, and make data products deliverable to PIs.
2015-Oct-27~30: ALMA all-hands meeting, Smogen, Sweeden.
2015-Aug-11: ALMA cycle 3 proposal approved.
2015-Aug-08: Received ALMA cycle 2 data.
I am leading an
ESO public survey
on Planck all-sky cold clumps. The survey is awarded 618 hours at the 10m SMT in Arizona in the coming three years. We are preparing the observations, which will start in October 2015.
My study on Galactic large-scale filaments is highlighted by ESA Image Release
"Threading the Milky Way"
and ESA Feature Article
"Herschel's hunt for filaments in the Milky Way".
LOC in the ALMA/Herschel Archival Workshop, ESO Garching.
CASA and OT tutor on
ESO ALMA Cycle 3 Community Days.
Chair of the "ALMA day" in Workshop on AGN Fueling and Star Formation, Lijiang, China
ALMA long baseline commission took a
of a young solar system HL Tau.
My second book
is formally published by Springer:
"The Earliest Stages of Massive Clustered Star Formation: Fragmentation of Infrared Dark Clouds"
2014-Nov-02: My IRAM 30m proposal is accepted (A rated)
2014-Sep-30~Oct-02: ARC all-hands meeting at Autrans, France
2014-Sep-15: My DFG priority program ISM-SPP proposal is fully approved
2014-Aug-10~20: Astronomer on Duty at ALMA OSF, Chile
My series of studies on IRDCs highlighted in SMA Newsletter (issue July 2014) in article
"Most In-depth View of the Initial Stages of Massive Clustered Star Formation"
2014-July-7~11: Workshop "Mass assembly from clouds to clusters", Haus Sexten, Via Dolomiti, Italy
My research highlighted at the SMA 10 years anniversary
"Celebrating a Decade of Discovery"
My poster at the EPoS 2014 conference downloadable from
DFG priority program ISM-SPP
proposal is recommended for full funding by the reviewers.
accepted to EWASS 2014 in Symposia 10: "mm/submm astronomy in the ALMA era".
ALMA cycle 2 results: 1 PI and 2 co-I projects approved.
2014-Apr-1~7: ALMA QA2 training in Garching
2014-Mar-30: My first internal beta release of pixSED v0
2014-Mar-20: ALMA featured in major medias:
DFG priority program
2014-Mar-14: Back from ALMA cycle 2 proposal review, results should come out around "mid-April"
My study on IRDC G11.11-0.12 highlighted by
UK Royal Astronomical Society, among many
other medias word wide.
accepted to EPoS 2014
2013-Nov-21: Back from AoD trip to ALMA OSF. I resumed cycle 1 observations out of multiple delays :-)
2013-Dec-12: Received permissions to publish my thesis in Springer, start to prepare the manuscript.
2013-Dec-05: Submitted ALMA cycle 2 proposals: PI on 1, co-I on 6 proposals.
2013-Oct-25: My project "Galactic cold interstellar filaments" phase II approved by Hi-GAL consortium.
2012-Dec-20: Received Springer Theses Prize.
2012-Aug-01: My book, Chinese translation of "Super Stars" published (I didn't like the Chinese title they forced me!)
Initial conditions of high-mass star formation
Infrared dark clouds, molecular filaments
submm/mm/cm interferometric observations
Lucky enough, all job positions I have held so far are independent fellowships, which allow more freedom in research.
European Southern Observatory, Garching Headquarters, Germany
(Close collaboration with
Erasmus Mundus Lotus Post-doctoral Fellow
Kapteyn Astronomical Institute, University of Groningen, The Netherlands
(Close collaboration with
Floris van der Tak)
Submillimeter Array (SMA) Pre-doctoral Fellow
Harvard-Smithsonian Center for Astrophysics, Cambridge MA, USA
Ph.D. in Astrophysics, Peking University, Beijing, China (highest distinction)
Thesis: "The Earliest Stages of Massive Clustered Star Formation: Fragmentation of Infrared Dark Clouds"
Annual Research Review Committee:
Philip C. Myers,
Tirupati K. Sridharan
B.S. in Physics, Beijing Institute of Technology, Beijing, China (highest distinction)
Thesis: "Circumstellar Habitable Zones of Solar-like Stars"
Tsinghua High School, Chongqing, China (highest distinction)
PLANCK COLD CLUMPS IN THE LAMBDA ORIONIS COMPLEX: I. DISCOVERY OF AN EXTREMELY YOUNG
CLASS 0 PROTOSTELLAR OBJECT AND A PROTO-BROWN DWARF CANDIDATE IN A BRIGHT RIMMED
CLUMP PGCC G192.32-11.88
Liu et al.
submitted to ApJS
Discovery of an extremely wide-angle bipolar outflow in AFGL 5142
Liu et al.
submitted to ApJL
(ESO student, co-advisers: Leonardo Testi and Izaskun Jimenez-Serra)
PhD thesis topic ''Characterizing the Earliest Phases of Massive Star Formation in Cold Core Objects Detected with Planck''.
I am the "fellow mentor" of Yue.
I have translated a National Geographic Kids popular science book "Super Stars" into Chinese (original author: David A. Aguilar, Harvard CfA). The book is available on
and many other book stores online and offline.
On October 30, 2006, merely one year after my first taste of astronomy, I was invited to give a public talk to 3,000 freshmen at BIT, sharing my view on developing a career as a professional astronomer.
When I am not doing astronomy, I love cooking, skiing, running, and writting (basically food, sports, and sort of literature :-). From 2003 to 2008 I have run the
yearly, achieved my personal record 3h32m29s in 2006. Since 2013 I started to participate in the
Garchinger Runde, exploring the lovely town we live in.
In winter 2013/14, I learned skiing and immediately fell in love with the Alps.