北京林科院博士含金量-tft每日頭條

　　張茂林，1991年7月25日出生，在中國湖南省啟東縣雙橋鎮楊塘村附近的農村長大。清華大學本科，碩士研究生，荷蘭-萊頓大學，天文學博士學位（Phd）。2019年1月17日，一場突如其來的大火，奪走了張茂林的生命。

　　北京林科院博士含金量（一顆彗星的隕落）(1)

　　荷蘭-萊頓大學，是最具有聲望的歐洲大學之一。成立于公元1575年2月8日。在這4百多年裡，萊頓大學共培養了笛卡爾，斯賓諾莎等文學巨匠。培養過包括愛因斯坦等16位諾貝爾得主，以及包括丘吉爾在内的9位國家元首。

　　2019年1月19日。荷蘭-萊頓大學官方發文紀念張茂林同學。原文如下：

　　In memoriam: Maolin Zhang

　　19 January 2019

　　We are grief-stricken that our PhD student Maolin Zhang passed away during the early morning of January 17th 2019. He died during a terrible fire that took place at his house in Hillegom.

　　Maolin was born on July 25th 1991 and grew up in the countryside near Yangtang Village, Shuangqiao Town, Qidong County, Hunan Province, China. After graduating from secondary school, he was admitted to the prestigious Tsinghua University in Beijing. He obtained a Masters degree in Engineering from the Department of Engineering Physics there in July 2016. His Masters thesis was entitled Interferometric imaging and data processing.

　　During the summer of 2014 he participated in a student program at the Netherlands Institute for Radio Astronomy (ASTRON) at Dwingeloo, the Netherlands. Supervised by Tom Oosterloo he used observations taken by the Westerbork radio telescope to study the distribution of hydrogen gas in galaxies. His exposure to radio astronomy motivated Maolin to apply for a scholarship from the Chinese Scholarship Council (CSC) to pursue a PhD in radio astronomy at Leiden Observatory. After being awarded this prestigious scholarship, Maolin travelled to Leiden in mid-2017 and started on a PhD project supervised by Prof. Huub Röttgering that involved observations of the distant Universe by the LOFAR radio telescope. During his first year at Leiden Maolins research concentrated on the analysis of LOFAR results on the formation and evolution of massive galaxies and black holes. He reduced data for a sample of radio sources whose properties indicate that they are located at extremely large distances. The results provided an important contribution to a paper that was led by Aayush Saxena, another Leiden PhD student.

　　During his second year, Maolin helped develop a new Bayesian technique to select large and well-defined samples of quasars from a multi-wavelength combination of data from recent surveys from optical telescopes and radio surveys from the LOFAR telescope. Working closely with Ken Duncan, Jonah Wagenveld and his promotor Huub Röttgering, he was well on his way to publishing his first paper.

　　Maolin was an extremely intelligent, hardworking and dedicated student with a passion for astronomy. He was eager to learn, always seeking to develop his skills, knowledge and experience further. We know Maolin as friendly, always smiling, modest and grateful for his chances in life. He had many interests outside of astronomy, including table tennis, tennis, Chinese chess, cooking and fishing. As a board member of the Leiden Science China community (LSC), he was an active member of the Chinese community at Leiden University. In his enthusiastic, diligent, and helpful way he was responsible for promoting various events organized by the LSC. He designed the nice logo of the LSC.

　　The loss of Maolin leaves a deep hole at the heart of our institute. It has been a privilege to know Maolin and to work with him, and it is hard to realise that he is not among us any more. Maolins journey to unravel the mysteries of the universe has come to a shocking and unexpected end. We will always remember Maolin as a bright star in our universe.

　　In memory of Maolin, we have created a special place in the Oort building, (Oortkamer, room 531).

　　It offers a place to think about him, to leave a message in a condolence book and to share your grief with colleagues, students and friends.

　　There was a home for you

　　in an exciting, cold and exotic place

　　with statistics and machines

　　dissecting the seemingly lifeless universe

　　probing galaxies

　　so far out

　　You

　　a living bubble surrounded by alien words

　　your lampoon brightening the ocean

　　preying on fish

　　fish and discovery

　　discovery and science

　　warming all bubbles in sight

　　the communal hot tub of life

　　a strange ride

　　encounter and adventure on your way

　　somehow something popped your bubble

　　way too soon

　　how can we grapple with something

　　so far out

　　The path of least resistance is straight up

　　from the place you first opened your eyes

　　from the place you first gazed up

　　some travel farther than others

　　explore further than others

　　so far out

　　You are one of them

　　You are one of us

　　We miss you Maolin

　　An anonymous astronomy PhD student

　　北京林科院博士含金量（一顆彗星的隕落）(2)

　　茂林，于1991年7月25日出生，在中國湖南省啟東縣雙橋鎮楊塘村附近的農村長大。從中學畢業後，他被錄取到着名的北京清華大學。他于2016年7月在那裡獲得了工程物理系的工程碩士學位。他的碩士論文題為“幹涉成像和數據處理”。

　　2014年夏天，他參加了荷蘭Dwingeloo的荷蘭射電天文學研究所（ASTRON）的學生項目。在Tom Oosterloo的監督下，他利用Westerbork射電望遠鏡拍攝的觀測資料來研究星系中氫氣的分布。他接觸射電天文學，促使茂林申請中國獎學金理事會（CSC）的獎學金，以便在萊頓天文台攻讀射電天文學博士學位。在獲得這一着名獎學金後，茂林于2017年中期前往萊頓，開始了由HuubRöttgering教授監督的博士項目，該項目涉及LOFAR射電望遠鏡對遙遠宇宙的觀測。在萊頓茂林的第一年，他的研究主要集中在對大質量星系和黑洞的形成和演化的LOFAR結果進行分析。他減少了無線電源樣本的數據，這些無線電源的屬性表明它們位于極遠的距離。結果為另一位Leiden博士生Aayush Saxena領導的論文做出了重要貢獻。

　　在他的第二年，茂林幫助開發了一種新的貝葉斯技術，從最近的光學望遠鏡調查和LOFAR望遠鏡的無線電測量數據的多波長組合中選擇大型和明确定義的類星體樣本。與Ken Duncan，Jonah Wagenveld及其發起人HuubRöttgering密切合作，他正在出版他的第一篇論文。

　　茂林是一位非常聰明，勤奮，敬業的學生，對天文學充滿熱情。他渴望學習，總是尋求進一步發展自己的技能，知識和經驗。我們知道茂林是友好的，總是微笑，謙虛和感激他的人生機會。他在天文學之外有許多興趣，包括乒乓球，網球，中國象棋，烹饪和釣魚。作為萊頓科學中國社區（LSC）的董事會成員，他是萊頓大學華人社區的積極成員。他熱情，勤奮，樂于助人，負責推動LSC組織的各種活動。他設計了LSC的漂亮标志。

　　失去茂林在我們學院的中心留下了深深的空洞。能夠認識茂林并與他合作是一種榮幸，很難意識到他不再是我們中間的人。茂林的解開宇宙奧秘的旅程已經到了令人震驚和意想不到的結局。我們将永遠銘記茂林是我們大學中的一顆璀璨明星。

　　2019年1月25日，下午4點到7點。荷蘭-萊頓大學在學術樓的中心，舉辦了紀念張茂林的活動，

　　北京林科院博士含金量（一顆彗星的隕落）(3)