When you want to see the stars, find someplace dark
The Mountain
When the police reports hit the web we were all a bit worried. A bullet hole reported in a door at Subaru Observatory. The photos circulated shortly after the reports did not help, it really looked like a bullet hole in the door.
Arriving at the summit Monday morning we took the few minute walk over to Subaru to look at the door in question.
This was not a bullet hole.
We have known this was coming for some time. With ALMA coming online the Caltech Submillimeter Observatory is looking decidedly obsolete. It’s closure was announced a few years back as Caltech planned to reallocate the budget.
Last year I arranged a tour of CSO for the members of WHAC. It was great to get a good look at this facility before it becomes part of history.
After almost 29 years, the California Institute of Technology (Caltech) will end operations of the Caltech Submillimeter Observatory (CSO) in Hawaii in September, 2015. As previously announced, Caltech will begin the planning for the dismantling of the observatory. This process will be planned in close coordination with the Office of Mauna Kea Management, University of Hawaii at Hilo, to ensure that it is undertaken promptly and in a culturally and environmentally respectful manner. Caltech is sincerely grateful to the people of Hawaii Island for the use of Maunakea for nearly three decades, enabling superb research from this excellent astronomical site for the betterment of humanity. Caltech commits to the dismantling of the telescope and site restoration according to the Decommissioning Plan approved by the Board of Land and Natural Resources.
The CSO is a cutting-edge facility for astronomical research and instrumentation development. The CSO’s 10.4-meter radio telescope was designed and assembled in the 1980s by a team led by the late Robert Leighton, Caltech’s Valentine Professor of Physics. Under the leadership of CSO founding director Tom Phillips, the John D. MacArthur Professor of Physics, Emeritus, at Caltech, new instrumentation for the CSO was developed over the years by Caltech faculty, students, and staff; by staff scientists from NASA’s Jet Propulsion Laboratory (which is managed by Caltech); and by collaborators at institutions around the world.
Located near the summit of Mauna Kea, the CSO began operation in early 1987, under the management of Caltech by agreement with the University of Hawaii. For nearly three decades, astronomers from around the world have used the observatory to pursue research and to accomplish groundbreaking achievements in submillimeter and millimeter astronomy—the study of light emitted by atoms, molecules, and dust grains in the interstellar space where stars and planets form. Well over 100 students, from Caltech and other institutions, have used the CSO for their PhD research.
“The CSO has played a central role in the development of the science and instrumentation of submillimeter and millimeter astronomy over the last three decades,” says Sunil Golwala, current director of the CSO and a professor of physics at Caltech. “The CSO legacy of combining training in instrumentation development, hands-on observing, and science will live on via its former students and researchers as well as in new projects for which it has laid the foundation.”
“This has been a most exciting time in which the field of submillimeter astronomy has been developed, leading to an understanding of astrochemistry, star formation, and distant, dust-obscured galaxies,” says Phillips, now the CSO’s director emeritus. “We thank the National Science Foundation, which funded the CSO continuously from construction in 1984 to the end of 2012.”
“The CSO has been foundational in creating the thriving discipline of submillimeter astronomy,” says Tom Soifer (BS ’68), Kent and Joyce Kresa Leadership Chair of Caltech’s Division of Physics, Mathematics and Astronomy. “It is with a deep sense of gratitude to the people of Hawaii that we thank them for hosting this magnificent facility for all this time.”
CSO Scientific Achievements:
- Development of superconducting-tunnel-junction detectors and spiderweb bolometers for radio astronomy, now commonly used on ground- and space-based radio observatories (ALMA, CARMA, Herschel, Planck), as well as the first astronomical demonstrations of an emerging new technology, kinetic inductance detectors
- Determination of the role of atomic carbon in the interstellar medium
- Detection of the submillimeter “line forest” using the line-survey technique, as well as of key hydride molecules, which has led to an improved understanding of interstellar chemistry
- Discovery of a new phase of stellar evolution for red giant stars, which occurs just before they completely lose their envelope of gas during the formation of planetary nebulae
- Mapping of the molecular gas of the radio galaxy Centaurus A, among others
- Determination of the volatile composition of comets, including the first ground-based detection of HDO (heavy water) in a comet, leading to an improved understanding of the origin of comets and of terrestrial water
- Discovery of ND3, a rare type of ammonia, with emission about 11 orders of magnitude stronger than initially presumed
- Discovery of signs of intermittent turbulence in interstellar molecular clouds
- Use of tools such as the Submillimeter High Angular Resolution Camera (SHARC) to image distant, dusty galaxies that are difficult to observe with optical telescopes
- Spatially resolved imaging of nearby stellar debris disks, using SHARC, providing evidence for the presence of planets in these systems
- Spectroscopy of distant and local galaxies using the Z-Spec spectrometer—developed at CSO—which has helped yield a better understanding of the processes of galaxy formation and provides a method for measuring galaxies that are too dusty to be seen with optical instruments
- Mapping of the pressure in the gaseous component of massive galaxy clusters via its interaction with the cosmic microwave background (the thermal Sunyaev-Zel’dovich effect)
- The first detection of the change in the cosmic microwave background caused by its interaction with the gaseous component of a high-speed subclump within a massive galaxy cluster (the kinetic Sunyaev-Zel’dovich effect)
To no one’s surprise those most opposed to astronomy on Mauna Kea have reacted negatively to yesterday’s statement by Governor Ige. Released statements by the Mauna Kea Hui, Kū Kia’i Mauna and other groups offer no compromise in response to the governor’s proposals.
Today’s protest is interesting compared to earlier protests, it seems less energetic, with far fewer passing vehicles honking in support. The previous protest at this location was almost constant honking. Has the community sentiment shifted away from those protesting? Are many accepting the spirit of compromise that was exemplified by the governor yesterday? The real test will be when construction resumes, and we all expect it to resume soon.
It was in walking over to check on the protest that I had a more interesting conversation. A Hawaiian gentleman was selling fresh ahi and pickled mangoes from a roadside stand. He ask why they were protesting the telescopes. It made no sense to him that anyone would oppose the TMT.
This is in line with many quiet conversations I have had. Many in the local community do support the TMT, but the support has been muted by the most strident voices of opposition. Conflict is not comfortable to many in this community, traditional Hawaiian and to a large extent traditional Asian attitudes that so many follow here have steered many away from the controversy. As we chatted he offered me a piece of ahi free, he had a big catch yesterday. I deferred and thanked him, I still have plenty of halibut to use up in the freezer.
After weeks of being pretty much silent on the controversy, Governor Ige has issued a statement on the ongoing issue of TMT construction. It was big news around this place, pretty much the entire staff of Keck Observatory piled into our big conference room to watch the governor’s address live.
A night on the summit and a stay at Hale Pōhaku offers an opportunity to explore the mountain. The plan had been to take a short hike in the Hale Pōhaku area to visit some interesting geologic features before heading down the mountain. A cold misting rain made that idea much less attractive. Instead I paid a visit to my friends at the Visitor Information Station and along the way visited the protest camp across the street. The experience of the day was a conversation I had with the occupants of the camp, a conversation both interesting and odd, I spent the entire drive back down the mountain and much of the day mulling over what I had seen and heard in that conversation.
The first to greet me as I came across the street was a gentleman I will call Mr. Sovereignty for his position on the matter. The argument atop Mauna Kea has become embroiled in a range of issues that have simmered in the islands for a long time. Among those who are against the construction of TMT are some who are simply against any further telescopes on Mauna Kea and also those who see the issue as wrapped up in questions on the legal status of the State of Hawaii. The main thrust of a common argument is that the Kingdom of Hawaii was illegally overthrown. Their goal is nothing less than the restoration of the kingdom as a sovereign entity.
Our mountain is home to a wide range of geologic features, Aside from the wide range of volcanic features expected on a shield volcano, there are also glacial features and a small lake. Indeed, one could teach a fairly thorough course in geology simply visiting places on Mauna Kea. It is the lake that seems completely out of place, Lake Waiau should not exist.
The lake is an anomaly. The cinder of Mauna Kea is highly permeable, water disappears into the ground at an impressive rate almost anywhere else on the summit. Something within the crater forms an impermeable layer that allows the water to persist at the surface.
The two most common theories are a layer of volcanic ash and/or clays, or a layer of permafrost beneath the surface. I prefer the ash and clay theory, there is suitable material present on several of the other cinder cones, most notably seen as yellow streaks down the side of Puʻu Poliʻahu and on the sides of Puʻu Waiau itself.
Walking into the building I saw the first sign. A prominent message placed in the windshield of a car parked by the entrance… “TMT, Too Many Telescopes” The protesters were here. I had hoped they would not be, we had things to get done in this meeting. A disruption of the meeting by protesters would mean another delay.
To that end I had written a proposal for the new instruments with a description of exactly what we wished to do. Attached is an appendix of photos and drawings to answer any possible questions. I was present to answer the inevitable questions I had not thought of and feared would get asked.
The room was filling rapidly when we arrived, far beyond the usual audience of one of these meetings. As I greeted the many people I know, I noted many new faces. They seemed out of place, a little on edge, a sense of having entered enemy territory. Many of those present were young, in their teens and early twenties, one a young mother, child carried in her arms. The t-shirts betrayed their allegiance, they came with cameras and poorly concealed protest signs.
I have no problem with those who oppose the telescopes atop Mauna Kea attending a meeting like the OMKM board meeting. Public participation is a good thing. Indeed, these meetings are open to the public for a reason, to allow anyone interested to attend and to see for themselves how those charged with managing the mountain do their jobs.
I worried about a protest that would disrupt the meeting, making it impossible to accomplish anything. This did not happen. I will give those who attended credit for showing respect for the proceedings and to those discussing the effort of caring for the mountain.
Here is the video of last Friday’s presentation, Perspectives on the Future of Mauna Kea. Well worth the watch for anyone interesting in the issue. My thanks to Doug Simons for representing the observatories!
If there is any complaint about the camera work… My fault.
An impassioned argument is one thing. I realize that tempers can flare and some people may say things that they might otherwise not say. But strong emotion can also reveal the truth behind the facade that we all maintain. What is revealed under stress can be our finest or our worst.
My thanks to Ian Lind for covering this on his blog as well as posting the response from the Mauna Kea Hui. Sorry, this sort of behavior must be called out and condemned by those on both sides of the discussion.