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Daily image

A sticker speaks a thousand words

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This summer, the NWO/NWO-I Employee Resource Group (ERG) Neurodiversity organised a button badge design competition with the assignment 'How does my brain feel today?'. They received beautiful and thoughtful designs from virtually every corner of NWO-D, the NWO Institutes and the NWO-I office. In total, they received almost 80 entries! Many ASTRON/JIVE/NOVA employees also submitted some cool designs. These designs have now been converted to badges and the winning design has been converted to stickers too!

If you are the artist of one of these anonymous designs, drop us an email and claim your badge.

Afgelopen zomer heeft de NWO/NWO-I Employee Resource Group (ERG) Neurodiversity een badge design competitie georganiseerd met het thema 'Hoe voelt mijn brein vandaag?'. Ze hebben hele mooie en doordachte ontwerpen ontvangen uit vrijwel alle hoeken van NWO-D, de NWO instituten en het NWO-I hoofdkantoor. In totaal werden bijna tachtig ontwerpen ingestuurd, waaronder een hoop van ASTRON/JIVE/NOVA medewerkers die hoge ogen gooiden qua design. Hiervan zijn nu badges gemaakt en van de winnende inzending is ook een sticker gemaakt! Stuur ons een email en claim je badge, als jij een van deze ontwerpen hebt gemaakt.

Colloquia

May 1, 2022

The Commensal Radio Astronomy FAST Survey (CRAFTS)

The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has released its first call for proposal and will be open to the international community next year. Based on a novel technique of high-cadence CAL injection, we have realized the world's first calibrated commensal survey mode, simultaneously taking data for pulsar search, HI galaxies, HI imaging, and FRBs. I introduce here one of the major survey plans, namely, the Commensal Radio Astronomy FAST Survey (CRAFTS, Li et al. 2018), which has discovered more than 100 new pulsars, including a few dozen MSPs, 5 new FRBs, including one new repeater. I will also briefly describe recent FAST results from CRAFTS and other dedicated programs, including new insights into the characteristic energy of FRBs, the formation process of neutron stars, the evolution of interstellar medium, etc.
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May 14, 2022

Extreme UV Emission: Bridging Galaxy Evolution Across Cosmic Time

In the last few years, our first glimpse of the spectral properties of z∼5−7 galaxies has emerged. Deep UV spectra have revealed prominent high-ionization nebular emission lines (i.e., C IV, He II, C III]) indicating that extreme radiation fields may be characteristic of reionization-era systems. While such strong high-ionization emission lines are atypical of the well-studied z∼0−3 galaxy samples, our recent UV spectral campaigns have revealed several galaxies with analogous emission-line features to reionization-era systems. I will discuss the recent detection of extremely strong UV emission in nearby galaxies and the potential sources of their very hard ionizing radiation fields. Such strong detections of high-ionization emission lines have been linked to the leakage of Lyman continuum (LyC) photons (necessary for reionization) both theoretically and observationally. These extreme UV emission-line dwarf galaxies provide a template for the extreme conditions that are important for reionization, however their features are still poorly understood. In preparation for the coming UV window onto the early universe with the advent of ELTs and JWST, I will introduce the COS Legacy Archival Spectroscopic SurveY - an upcoming large HST program designed to disentangle the stellar and nebular spectral signatures of 45 star-forming galaxies. This program will calibrate new UV diagnostics that will allow us to trace galaxy evolution to the distant universe, unveiling the properties of reionization-era galaxies.
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